Home / 69,839.20-96,380.29-39,625.80

Finding the Fourth Proportional to 69,839.20, 96,380.29 and 39,625.80

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Solution

The fourth proportional to 69,839.20, 96,380.29 and 39,625.80 is: 54,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,839.20 : 96,380.29 = 39,625.80 : x
  2. Step 2: Convert to fraction form
    69,839.20/96,380.29 = 39,625.80/x
  3. Step 3: Cross multiply
    69,839.20x = 96,380.29 × 39,625.80
  4. Step 4: Simplify right side
    69,839.20x = 3,819,146,095.48
  5. Step 5: Solve for x
    x = 3,819,146,095.48/69,839.20
  6. Step 6: Final answer
    x = 54,684.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.