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Find the fourth proportional to the numbers 36, 48 and 90.

This question was previously asked in
SSC GD Constable (2022) Official Paper (Held On : 12 Jan 2023 Shift 2)
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  1. 120
  2. 67.5
  3. 64
  4. 40

Answer (Detailed Solution Below)

Option 1 : 120
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Detailed Solution

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Given

The numbers 36, 48 and 90

Concept:

The fourth proportional to the numbers a, b, and c is given by

(b × c)/a.

Calculation:

The fourth proportional to the numbers 36, 48 and 90 is

(48 × 90)/36 = 120.

Therefore, the fourth proportional to the numbers 36, 48 and 90 is 120.

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Latest SSC GD Constable Updates

Last updated on Jul 7, 2025

-> The Staff Selection Commission released the SSC GD 2025 Answer Key on 26th June 2025 on the official website.

-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.

-> Now the total number of vacancy is 53,690. Previously, SSC GD 2025 Notification was released for 39481 Vacancies. 

-> The selection process includes CBT, PET/PST, Medical Examination, and Document Verification.

-> The candidates who will be appearing for the 2026 cycle in the exam must attempt the SSC GD Constable Previous Year Papers. Also, attempt SSC GD Constable Mock Tests.

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