Home / 57,545.20-86,310.78-15,428.44

Finding the Fourth Proportional to 57,545.20, 86,310.78 and 15,428.44

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Solution

The fourth proportional to 57,545.20, 86,310.78 and 15,428.44 is: 23,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,545.20 : 86,310.78 = 15,428.44 : x
  2. Step 2: Convert to fraction form
    57,545.20/86,310.78 = 15,428.44/x
  3. Step 3: Cross multiply
    57,545.20x = 86,310.78 × 15,428.44
  4. Step 4: Simplify right side
    57,545.20x = 1,331,640,690.58
  5. Step 5: Solve for x
    x = 1,331,640,690.58/57,545.20
  6. Step 6: Final answer
    x = 23,140.78

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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.