Finding the Fourth Proportional to 71,299.43, 107,143.01 and 38,042.99
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Solution
The fourth proportional to 71,299.43, 107,143.01 and 38,042.99 is: 57,167.92
Step by Step Solution
- Step 1: Write the proportion equation
71,299.43 : 107,143.01 = 38,042.99 : x - Step 2: Convert to fraction form
71,299.43/107,143.01 = 38,042.99/x - Step 3: Cross multiply
71,299.43x = 107,143.01 × 38,042.99 - Step 4: Simplify right side
71,299.43x = 4,076,040,458.00 - Step 5: Solve for x
x = 4,076,040,458.00/71,299.43 - Step 6: Final answer
x = 57,167.92
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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.