Question

Find value of y if 36 90 90 y are in proportion

Answer 1

Answer:

Given that, 36, 90, 90, y are in proportion.

Product of means = 90*90

Product of extremes = 36*y

Therefore, 36*y = 90*90

∴ y = 810/ 36

y = 225

Answer 2

Answer:

The value of y is 225.

Step-by-step explanation:

Let 36:90::90:y.

b² = ac

⇒ 90² = 36y

⇒ 8100 = 36y

⇒ y = 8100/36 = 225

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