Home / 48,540.20-72,839.10-31,947.80

Finding the Fourth Proportional to 48,540.20, 72,839.10 and 31,947.80

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Solution

The fourth proportional to 48,540.20, 72,839.10 and 31,947.80 is: 47,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,540.20 : 72,839.10 = 31,947.80 : x
  2. Step 2: Convert to fraction form
    48,540.20/72,839.10 = 31,947.80/x
  3. Step 3: Cross multiply
    48,540.20x = 72,839.10 × 31,947.80
  4. Step 4: Simplify right side
    48,540.20x = 2,327,048,998.98
  5. Step 5: Solve for x
    x = 2,327,048,998.98/48,540.20
  6. Step 6: Final answer
    x = 47,940.66

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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.