Home / 81,951.24-122,939.82-29,359.56

Finding the Fourth Proportional to 81,951.24, 122,939.82 and 29,359.56

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Solution

The fourth proportional to 81,951.24, 122,939.82 and 29,359.56 is: 44,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,951.24 : 122,939.82 = 29,359.56 : x
  2. Step 2: Convert to fraction form
    81,951.24/122,939.82 = 29,359.56/x
  3. Step 3: Cross multiply
    81,951.24x = 122,939.82 × 29,359.56
  4. Step 4: Simplify right side
    81,951.24x = 3,609,459,021.68
  5. Step 5: Solve for x
    x = 3,609,459,021.68/81,951.24
  6. Step 6: Final answer
    x = 44,043.98

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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.