Home / 82,490.88-123,757.56-38,149.44

Finding the Fourth Proportional to 82,490.88, 123,757.56 and 38,149.44

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Solution

The fourth proportional to 82,490.88, 123,757.56 and 38,149.44 is: 57,233.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,490.88 : 123,757.56 = 38,149.44 : x
  2. Step 2: Convert to fraction form
    82,490.88/123,757.56 = 38,149.44/x
  3. Step 3: Cross multiply
    82,490.88x = 123,757.56 × 38,149.44
  4. Step 4: Simplify right side
    82,490.88x = 4,721,281,609.77
  5. Step 5: Solve for x
    x = 4,721,281,609.77/82,490.88
  6. Step 6: Final answer
    x = 57,233.98

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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.