Home / 57,147.45-78,863.38-31,996.95

Finding the Fourth Proportional to 57,147.45, 78,863.38 and 31,996.95

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Solution

The fourth proportional to 57,147.45, 78,863.38 and 31,996.95 is: 44,155.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,147.45 : 78,863.38 = 31,996.95 : x
  2. Step 2: Convert to fraction form
    57,147.45/78,863.38 = 31,996.95/x
  3. Step 3: Cross multiply
    57,147.45x = 78,863.38 × 31,996.95
  4. Step 4: Simplify right side
    57,147.45x = 2,523,387,626.69
  5. Step 5: Solve for x
    x = 2,523,387,626.69/57,147.45
  6. Step 6: Final answer
    x = 44,155.73

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Double scale
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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.