Home / 72,439.60-108,677.88-22,520.12

Finding the Fourth Proportional to 72,439.60, 108,677.88 and 22,520.12

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Solution

The fourth proportional to 72,439.60, 108,677.88 and 22,520.12 is: 33,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439.60 : 108,677.88 = 22,520.12 : x
  2. Step 2: Convert to fraction form
    72,439.60/108,677.88 = 22,520.12/x
  3. Step 3: Cross multiply
    72,439.60x = 108,677.88 × 22,520.12
  4. Step 4: Simplify right side
    72,439.60x = 2,447,438,898.95
  5. Step 5: Solve for x
    x = 2,447,438,898.95/72,439.60
  6. Step 6: Final answer
    x = 33,785.93

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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.