Home / 81,484.88-122,149.56-26,042.96

Finding the Fourth Proportional to 81,484.88, 122,149.56 and 26,042.96

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Solution

The fourth proportional to 81,484.88, 122,149.56 and 26,042.96 is: 39,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,484.88 : 122,149.56 = 26,042.96 : x
  2. Step 2: Convert to fraction form
    81,484.88/122,149.56 = 26,042.96/x
  3. Step 3: Cross multiply
    81,484.88x = 122,149.56 × 26,042.96
  4. Step 4: Simplify right side
    81,484.88x = 3,181,136,105.10
  5. Step 5: Solve for x
    x = 3,181,136,105.10/81,484.88
  6. Step 6: Final answer
    x = 39,039.59

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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.