Finding the Fourth Proportional to 83,424.43, 125,049.12 and 39,013.75
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Solution
The fourth proportional to 83,424.43, 125,049.12 and 39,013.75 is: 58,479.69
Step by Step Solution
- Step 1: Write the proportion equation
83,424.43 : 125,049.12 = 39,013.75 : x - Step 2: Convert to fraction form
83,424.43/125,049.12 = 39,013.75/x - Step 3: Cross multiply
83,424.43x = 125,049.12 × 39,013.75 - Step 4: Simplify right side
83,424.43x = 4,878,635,105.40 - Step 5: Solve for x
x = 4,878,635,105.40/83,424.43 - Step 6: Final answer
x = 58,479.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.