Home / 84,607.20-126,951.30-56,540.70

Finding the Fourth Proportional to 84,607.20, 126,951.30 and 56,540.70

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Solution

The fourth proportional to 84,607.20, 126,951.30 and 56,540.70 is: 84,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,607.20 : 126,951.30 = 56,540.70 : x
  2. Step 2: Convert to fraction form
    84,607.20/126,951.30 = 56,540.70/x
  3. Step 3: Cross multiply
    84,607.20x = 126,951.30 × 56,540.70
  4. Step 4: Simplify right side
    84,607.20x = 7,177,915,367.91
  5. Step 5: Solve for x
    x = 7,177,915,367.91/84,607.20
  6. Step 6: Final answer
    x = 84,838.12

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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.