Home / 87,598.75-131,481.15-54,217.84

Finding the Fourth Proportional to 87,598.75, 131,481.15 and 54,217.84

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Solution

The fourth proportional to 87,598.75, 131,481.15 and 54,217.84 is: 81,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,598.75 : 131,481.15 = 54,217.84 : x
  2. Step 2: Convert to fraction form
    87,598.75/131,481.15 = 54,217.84/x
  3. Step 3: Cross multiply
    87,598.75x = 131,481.15 × 54,217.84
  4. Step 4: Simplify right side
    87,598.75x = 7,128,623,953.72
  5. Step 5: Solve for x
    x = 7,128,623,953.72/87,598.75
  6. Step 6: Final answer
    x = 81,378.15

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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.