Home / 82,579.73-123,845.28-23,420.57

Finding the Fourth Proportional to 82,579.73, 123,845.28 and 23,420.57

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Solution

The fourth proportional to 82,579.73, 123,845.28 and 23,420.57 is: 35,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,579.73 : 123,845.28 = 23,420.57 : x
  2. Step 2: Convert to fraction form
    82,579.73/123,845.28 = 23,420.57/x
  3. Step 3: Cross multiply
    82,579.73x = 123,845.28 × 23,420.57
  4. Step 4: Simplify right side
    82,579.73x = 2,900,526,430.18
  5. Step 5: Solve for x
    x = 2,900,526,430.18/82,579.73
  6. Step 6: Final answer
    x = 35,123.95

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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.