Finding the Fourth Proportional to 79,351.07, 118,963.97 and 39,342.47
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Solution
The fourth proportional to 79,351.07, 118,963.97 and 39,342.47 is: 58,982.65
Step by Step Solution
- Step 1: Write the proportion equation
79,351.07 : 118,963.97 = 39,342.47 : x - Step 2: Convert to fraction form
79,351.07/118,963.97 = 39,342.47/x - Step 3: Cross multiply
79,351.07x = 118,963.97 × 39,342.47 - Step 4: Simplify right side
79,351.07x = 4,680,336,332.70 - Step 5: Solve for x
x = 4,680,336,332.70/79,351.07 - Step 6: Final answer
x = 58,982.65
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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.