Finding the Fourth Proportional to 96.38, 132.99 and 63.68
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Solution
The fourth proportional to 96.38, 132.99 and 63.68 is: 87.87
Step by Step Solution
- Step 1: Write the proportion equation
96.38 : 132.99 = 63.68 : x - Step 2: Convert to fraction form
96.38/132.99 = 63.68/x - Step 3: Cross multiply
96.38x = 132.99 × 63.68 - Step 4: Simplify right side
96.38x = 8,468.14 - Step 5: Solve for x
x = 8,468.14/96.38 - Step 6: Final answer
x = 87.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.