Home / 41,240.80-61,861.20-31,399.30

Finding the Fourth Proportional to 41,240.80, 61,861.20 and 31,399.30

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Solution

The fourth proportional to 41,240.80, 61,861.20 and 31,399.30 is: 47,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,240.80 : 61,861.20 = 31,399.30 : x
  2. Step 2: Convert to fraction form
    41,240.80/61,861.20 = 31,399.30/x
  3. Step 3: Cross multiply
    41,240.80x = 61,861.20 × 31,399.30
  4. Step 4: Simplify right side
    41,240.80x = 1,942,398,377.16
  5. Step 5: Solve for x
    x = 1,942,398,377.16/41,240.80
  6. Step 6: Final answer
    x = 47,098.95

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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.