Finding the Fourth Proportional to 79,321.17, 118,905.91 and 29,387.87
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Solution
The fourth proportional to 79,321.17, 118,905.91 and 29,387.87 is: 44,053.70
Step by Step Solution
- Step 1: Write the proportion equation
79,321.17 : 118,905.91 = 29,387.87 : x - Step 2: Convert to fraction form
79,321.17/118,905.91 = 29,387.87/x - Step 3: Cross multiply
79,321.17x = 118,905.91 × 29,387.87 - Step 4: Simplify right side
79,321.17x = 3,494,390,757.31 - Step 5: Solve for x
x = 3,494,390,757.31/79,321.17 - Step 6: Final answer
x = 44,053.70
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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.