Question

Find the forth proportional to 36,45,16​

Answer 1

Given:

Given numbers are 5, 18, and 36

Formula used:

Fourth proportional to a, b, and c is d

Calculations:

Let the fourth proportional be x

⇒ 5/18 = 36/x

⇒ x = (36 × 18)/5

⇒ x = 129.6

∴ The fourth proportional to 5, 18, and 36 is 129.6