Home / 87,500.40-131,077.80-52,335.60

Finding the Fourth Proportional to 87,500.40, 131,077.80 and 52,335.60

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Solution

The fourth proportional to 87,500.40, 131,077.80 and 52,335.60 is: 78,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,500.40 : 131,077.80 = 52,335.60 : x
  2. Step 2: Convert to fraction form
    87,500.40/131,077.80 = 52,335.60/x
  3. Step 3: Cross multiply
    87,500.40x = 131,077.80 × 52,335.60
  4. Step 4: Simplify right side
    87,500.40x = 6,860,035,309.68
  5. Step 5: Solve for x
    x = 6,860,035,309.68/87,500.40
  6. Step 6: Final answer
    x = 78,400.05

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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.