Home / 87,881.36-131,562.83-54,493.97

Finding the Fourth Proportional to 87,881.36, 131,562.83 and 54,493.97

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Solution

The fourth proportional to 87,881.36, 131,562.83 and 54,493.97 is: 81,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,881.36 : 131,562.83 = 54,493.97 : x
  2. Step 2: Convert to fraction form
    87,881.36/131,562.83 = 54,493.97/x
  3. Step 3: Cross multiply
    87,881.36x = 131,562.83 × 54,493.97
  4. Step 4: Simplify right side
    87,881.36x = 7,169,380,389.56
  5. Step 5: Solve for x
    x = 7,169,380,389.56/87,881.36
  6. Step 6: Final answer
    x = 81,580.22

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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.