Home / 87,034.64-130,338.24-42,517.88

Finding the Fourth Proportional to 87,034.64, 130,338.24 and 42,517.88

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Solution

The fourth proportional to 87,034.64, 130,338.24 and 42,517.88 is: 63,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,034.64 : 130,338.24 = 42,517.88 : x
  2. Step 2: Convert to fraction form
    87,034.64/130,338.24 = 42,517.88/x
  3. Step 3: Cross multiply
    87,034.64x = 130,338.24 × 42,517.88
  4. Step 4: Simplify right side
    87,034.64x = 5,541,705,647.73
  5. Step 5: Solve for x
    x = 5,541,705,647.73/87,034.64
  6. Step 6: Final answer
    x = 63,672.41

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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.