Home / 82,542.87-123,821.19-26,390.97

Finding the Fourth Proportional to 82,542.87, 123,821.19 and 26,390.97

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Solution

The fourth proportional to 82,542.87, 123,821.19 and 26,390.97 is: 39,588.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,542.87 : 123,821.19 = 26,390.97 : x
  2. Step 2: Convert to fraction form
    82,542.87/123,821.19 = 26,390.97/x
  3. Step 3: Cross multiply
    82,542.87x = 123,821.19 × 26,390.97
  4. Step 4: Simplify right side
    82,542.87x = 3,267,761,310.65
  5. Step 5: Solve for x
    x = 3,267,761,310.65/82,542.87
  6. Step 6: Final answer
    x = 39,588.66

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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.