Home / 57,121.38-85,679.61-15,568.38

Finding the Fourth Proportional to 57,121.38, 85,679.61 and 15,568.38

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Solution

The fourth proportional to 57,121.38, 85,679.61 and 15,568.38 is: 23,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.38 : 85,679.61 = 15,568.38 : x
  2. Step 2: Convert to fraction form
    57,121.38/85,679.61 = 15,568.38/x
  3. Step 3: Cross multiply
    57,121.38x = 85,679.61 × 15,568.38
  4. Step 4: Simplify right side
    57,121.38x = 1,333,892,726.73
  5. Step 5: Solve for x
    x = 1,333,892,726.73/57,121.38
  6. Step 6: Final answer
    x = 23,351.90

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1.5x scale

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.