Home / 82,255.74-123,432.76-75,563.52

Finding the Fourth Proportional to 82,255.74, 123,432.76 and 75,563.52

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Solution

The fourth proportional to 82,255.74, 123,432.76 and 75,563.52 is: 113,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,255.74 : 123,432.76 = 75,563.52 : x
  2. Step 2: Convert to fraction form
    82,255.74/123,432.76 = 75,563.52/x
  3. Step 3: Cross multiply
    82,255.74x = 123,432.76 × 75,563.52
  4. Step 4: Simplify right side
    82,255.74x = 9,327,013,211.75
  5. Step 5: Solve for x
    x = 9,327,013,211.75/82,255.74
  6. Step 6: Final answer
    x = 113,390.43

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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.