Home / 87,999.34-131,780.29-61,580.46

Finding the Fourth Proportional to 87,999.34, 131,780.29 and 61,580.46

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Solution

The fourth proportional to 87,999.34, 131,780.29 and 61,580.46 is: 92,217.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.34 : 131,780.29 = 61,580.46 : x
  2. Step 2: Convert to fraction form
    87,999.34/131,780.29 = 61,580.46/x
  3. Step 3: Cross multiply
    87,999.34x = 131,780.29 × 61,580.46
  4. Step 4: Simplify right side
    87,999.34x = 8,115,090,877.13
  5. Step 5: Solve for x
    x = 8,115,090,877.13/87,999.34
  6. Step 6: Final answer
    x = 92,217.63

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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.