Home / 82,447.15-123,504.88-62,490.78

Finding the Fourth Proportional to 82,447.15, 123,504.88 and 62,490.78

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Solution

The fourth proportional to 82,447.15, 123,504.88 and 62,490.78 is: 93,610.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,447.15 : 123,504.88 = 62,490.78 : x
  2. Step 2: Convert to fraction form
    82,447.15/123,504.88 = 62,490.78/x
  3. Step 3: Cross multiply
    82,447.15x = 123,504.88 × 62,490.78
  4. Step 4: Simplify right side
    82,447.15x = 7,717,915,511.26
  5. Step 5: Solve for x
    x = 7,717,915,511.26/82,447.15
  6. Step 6: Final answer
    x = 93,610.46

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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.