Home / 82,380.92-123,592.14-38,038.76

Finding the Fourth Proportional to 82,380.92, 123,592.14 and 38,038.76

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Solution

The fourth proportional to 82,380.92, 123,592.14 and 38,038.76 is: 57,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,380.92 : 123,592.14 = 38,038.76 : x
  2. Step 2: Convert to fraction form
    82,380.92/123,592.14 = 38,038.76/x
  3. Step 3: Cross multiply
    82,380.92x = 123,592.14 × 38,038.76
  4. Step 4: Simplify right side
    82,380.92x = 4,701,291,751.35
  5. Step 5: Solve for x
    x = 4,701,291,751.35/82,380.92
  6. Step 6: Final answer
    x = 57,067.73

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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.