Finding the Fourth Proportional to 71,096.13, 106,664.14 and 31,118.61
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Solution
The fourth proportional to 71,096.13, 106,664.14 and 31,118.61 is: 46,686.65
Step by Step Solution
- Step 1: Write the proportion equation
71,096.13 : 106,664.14 = 31,118.61 : x - Step 2: Convert to fraction form
71,096.13/106,664.14 = 31,118.61/x - Step 3: Cross multiply
71,096.13x = 106,664.14 × 31,118.61 - Step 4: Simplify right side
71,096.13x = 3,319,240,212.53 - Step 5: Solve for x
x = 3,319,240,212.53/71,096.13 - Step 6: Final answer
x = 46,686.65
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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.