Question
Download Solution PDFIf the third proportional of 3x2 and 4xy is 48, then find the positive value of y.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The expression = 3x2, 4xy and 48
Concept:
If a, b, and c are in proportion.
\({a\over b}={b\over c}\)
Formula used:
If a, b, and c are in proportion then third proportion
\(c={b^2\over a}\)
Calculation:
According to the question
⇒ 48 = \({({4xy})^2\over 3x^2}={16x^2y^2\over3x^2}={16y^2\over3}\)
⇒ 3 × 3 = y2
⇒ y =√(3 × 3) = 3
∴ The required result will be 3.
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