Home / 63,910.20-95,865.30-40,639.80

Finding the Fourth Proportional to 63,910.20, 95,865.30 and 40,639.80

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Solution

The fourth proportional to 63,910.20, 95,865.30 and 40,639.80 is: 60,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,910.20 : 95,865.30 = 40,639.80 : x
  2. Step 2: Convert to fraction form
    63,910.20/95,865.30 = 40,639.80/x
  3. Step 3: Cross multiply
    63,910.20x = 95,865.30 × 40,639.80
  4. Step 4: Simplify right side
    63,910.20x = 3,895,946,618.94
  5. Step 5: Solve for x
    x = 3,895,946,618.94/63,910.20
  6. Step 6: Final answer
    x = 60,959.70

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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.