Home / 87,634.40-131,278.80-52,469.60

Finding the Fourth Proportional to 87,634.40, 131,278.80 and 52,469.60

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Solution

The fourth proportional to 87,634.40, 131,278.80 and 52,469.60 is: 78,600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,634.40 : 131,278.80 = 52,469.60 : x
  2. Step 2: Convert to fraction form
    87,634.40/131,278.80 = 52,469.60/x
  3. Step 3: Cross multiply
    87,634.40x = 131,278.80 × 52,469.60
  4. Step 4: Simplify right side
    87,634.40x = 6,888,146,124.48
  5. Step 5: Solve for x
    x = 6,888,146,124.48/87,634.40
  6. Step 6: Final answer
    x = 78,600.94

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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.