Finding the Fourth Proportional to 71,490.80, 107,201.26 and 29,359.62
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Solution
The fourth proportional to 71,490.80, 107,201.26 and 29,359.62 is: 44,025.08
Step by Step Solution
- Step 1: Write the proportion equation
71,490.80 : 107,201.26 = 29,359.62 : x - Step 2: Convert to fraction form
71,490.80/107,201.26 = 29,359.62/x - Step 3: Cross multiply
71,490.80x = 107,201.26 × 29,359.62 - Step 4: Simplify right side
71,490.80x = 3,147,388,257.12 - Step 5: Solve for x
x = 3,147,388,257.12/71,490.80 - Step 6: Final answer
x = 44,025.08
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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.