Home / 83,869.20-125,760.60-31,251.60

Finding the Fourth Proportional to 83,869.20, 125,760.60 and 31,251.60

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Solution

The fourth proportional to 83,869.20, 125,760.60 and 31,251.60 is: 46,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,869.20 : 125,760.60 = 31,251.60 : x
  2. Step 2: Convert to fraction form
    83,869.20/125,760.60 = 31,251.60/x
  3. Step 3: Cross multiply
    83,869.20x = 125,760.60 × 31,251.60
  4. Step 4: Simplify right side
    83,869.20x = 3,930,219,966.96
  5. Step 5: Solve for x
    x = 3,930,219,966.96/83,869.20
  6. Step 6: Final answer
    x = 46,861.30

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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.