Finding the Fourth Proportional to 71,489.80, 107,199.77 and 29,358.62
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Solution
The fourth proportional to 71,489.80, 107,199.77 and 29,358.62 is: 44,023.58
Step by Step Solution
- Step 1: Write the proportion equation
71,489.80 : 107,199.77 = 29,358.62 : x - Step 2: Convert to fraction form
71,489.80/107,199.77 = 29,358.62/x - Step 3: Cross multiply
71,489.80x = 107,199.77 × 29,358.62 - Step 4: Simplify right side
71,489.80x = 3,147,237,030.72 - Step 5: Solve for x
x = 3,147,237,030.72/71,489.80 - Step 6: Final answer
x = 44,023.58
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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.