Finding the Fourth Proportional to 85,957.20, 118,614.99 and 47,713.74
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Solution
The fourth proportional to 85,957.20, 118,614.99 and 47,713.74 is: 65,841.66
Step by Step Solution
- Step 1: Write the proportion equation
85,957.20 : 118,614.99 = 47,713.74 : x - Step 2: Convert to fraction form
85,957.20/118,614.99 = 47,713.74/x - Step 3: Cross multiply
85,957.20x = 118,614.99 × 47,713.74 - Step 4: Simplify right side
85,957.20x = 5,659,564,792.96 - Step 5: Solve for x
x = 5,659,564,792.96/85,957.20 - Step 6: Final answer
x = 65,841.66
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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.