Finding the Fourth Proportional to 71,588.93, 107,387.12 and 18,281.42
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Solution
The fourth proportional to 71,588.93, 107,387.12 and 18,281.42 is: 27,423.07
Step by Step Solution
- Step 1: Write the proportion equation
71,588.93 : 107,387.12 = 18,281.42 : x - Step 2: Convert to fraction form
71,588.93/107,387.12 = 18,281.42/x - Step 3: Cross multiply
71,588.93x = 107,387.12 × 18,281.42 - Step 4: Simplify right side
71,588.93x = 1,963,188,414.97 - Step 5: Solve for x
x = 1,963,188,414.97/71,588.93 - Step 6: Final answer
x = 27,423.07
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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.