Finding the Fourth Proportional to 96,140.76, 132,561.71 and 65,531.99
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Solution
The fourth proportional to 96,140.76, 132,561.71 and 65,531.99 is: 90,357.43
Step by Step Solution
- Step 1: Write the proportion equation
96,140.76 : 132,561.71 = 65,531.99 : x - Step 2: Convert to fraction form
96,140.76/132,561.71 = 65,531.99/x - Step 3: Cross multiply
96,140.76x = 132,561.71 × 65,531.99 - Step 4: Simplify right side
96,140.76x = 8,687,031,663.63 - Step 5: Solve for x
x = 8,687,031,663.63/96,140.76 - Step 6: Final answer
x = 90,357.43
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1.5x scale
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.