Home / 82,580.25-123,876.56-23,420.69

Finding the Fourth Proportional to 82,580.25, 123,876.56 and 23,420.69

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Solution

The fourth proportional to 82,580.25, 123,876.56 and 23,420.69 is: 35,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,580.25 : 123,876.56 = 23,420.69 : x
  2. Step 2: Convert to fraction form
    82,580.25/123,876.56 = 23,420.69/x
  3. Step 3: Cross multiply
    82,580.25x = 123,876.56 × 23,420.69
  4. Step 4: Simplify right side
    82,580.25x = 2,901,273,773.54
  5. Step 5: Solve for x
    x = 2,901,273,773.54/82,580.25
  6. Step 6: Final answer
    x = 35,132.78

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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.