Home / 87,343.80-131,031.96-28,173.28

Finding the Fourth Proportional to 87,343.80, 131,031.96 and 28,173.28

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Solution

The fourth proportional to 87,343.80, 131,031.96 and 28,173.28 is: 42,265.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,343.80 : 131,031.96 = 28,173.28 : x
  2. Step 2: Convert to fraction form
    87,343.80/131,031.96 = 28,173.28/x
  3. Step 3: Cross multiply
    87,343.80x = 131,031.96 × 28,173.28
  4. Step 4: Simplify right side
    87,343.80x = 3,691,600,098.03
  5. Step 5: Solve for x
    x = 3,691,600,098.03/87,343.80
  6. Step 6: Final answer
    x = 42,265.16

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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.