Home / 82,010.35-122,997.05-29,419.83

Finding the Fourth Proportional to 82,010.35, 122,997.05 and 29,419.83

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Solution

The fourth proportional to 82,010.35, 122,997.05 and 29,419.83 is: 44,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,010.35 : 122,997.05 = 29,419.83 : x
  2. Step 2: Convert to fraction form
    82,010.35/122,997.05 = 29,419.83/x
  3. Step 3: Cross multiply
    82,010.35x = 122,997.05 × 29,419.83
  4. Step 4: Simplify right side
    82,010.35x = 3,618,551,686.52
  5. Step 5: Solve for x
    x = 3,618,551,686.52/82,010.35
  6. Step 6: Final answer
    x = 44,123.11

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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.