Finding the Fourth Proportional to 71,381.31, 107,030.45 and 27,011.49
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Solution
The fourth proportional to 71,381.31, 107,030.45 and 27,011.49 is: 40,501.53
Step by Step Solution
- Step 1: Write the proportion equation
71,381.31 : 107,030.45 = 27,011.49 : x - Step 2: Convert to fraction form
71,381.31/107,030.45 = 27,011.49/x - Step 3: Cross multiply
71,381.31x = 107,030.45 × 27,011.49 - Step 4: Simplify right side
71,381.31x = 2,891,051,929.87 - Step 5: Solve for x
x = 2,891,051,929.87/71,381.31 - Step 6: Final answer
x = 40,501.53
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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.