Home / 57,229.38-79,003.53-38,140.56

Finding the Fourth Proportional to 57,229.38, 79,003.53 and 38,140.56

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Solution

The fourth proportional to 57,229.38, 79,003.53 and 38,140.56 is: 52,651.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,229.38 : 79,003.53 = 38,140.56 : x
  2. Step 2: Convert to fraction form
    57,229.38/79,003.53 = 38,140.56/x
  3. Step 3: Cross multiply
    57,229.38x = 79,003.53 × 38,140.56
  4. Step 4: Simplify right side
    57,229.38x = 3,013,238,876.18
  5. Step 5: Solve for x
    x = 3,013,238,876.18/57,229.38
  6. Step 6: Final answer
    x = 52,651.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.