Home / 81,625.31-122,425.55-27,589.29

Finding the Fourth Proportional to 81,625.31, 122,425.55 and 27,589.29

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Solution

The fourth proportional to 81,625.31, 122,425.55 and 27,589.29 is: 41,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,625.31 : 122,425.55 = 27,589.29 : x
  2. Step 2: Convert to fraction form
    81,625.31/122,425.55 = 27,589.29/x
  3. Step 3: Cross multiply
    81,625.31x = 122,425.55 × 27,589.29
  4. Step 4: Simplify right side
    81,625.31x = 3,377,633,864.41
  5. Step 5: Solve for x
    x = 3,377,633,864.41/81,625.31
  6. Step 6: Final answer
    x = 41,379.74

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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.