Finding the Fourth Proportional to 96,121.62, 132,648.12 and 53,681.76
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Solution
The fourth proportional to 96,121.62, 132,648.12 and 53,681.76 is: 74,080.99
Step by Step Solution
- Step 1: Write the proportion equation
96,121.62 : 132,648.12 = 53,681.76 : x - Step 2: Convert to fraction form
96,121.62/132,648.12 = 53,681.76/x - Step 3: Cross multiply
96,121.62x = 132,648.12 × 53,681.76 - Step 4: Simplify right side
96,121.62x = 7,120,784,542.29 - Step 5: Solve for x
x = 7,120,784,542.29/96,121.62 - Step 6: Final answer
x = 74,080.99
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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.