Home / 87,540.80-131,311.20-52,462.40

Finding the Fourth Proportional to 87,540.80, 131,311.20 and 52,462.40

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Solution

The fourth proportional to 87,540.80, 131,311.20 and 52,462.40 is: 78,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540.80 : 131,311.20 = 52,462.40 : x
  2. Step 2: Convert to fraction form
    87,540.80/131,311.20 = 52,462.40/x
  3. Step 3: Cross multiply
    87,540.80x = 131,311.20 × 52,462.40
  4. Step 4: Simplify right side
    87,540.80x = 6,888,900,698.88
  5. Step 5: Solve for x
    x = 6,888,900,698.88/87,540.80
  6. Step 6: Final answer
    x = 78,693.60

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1.5x scale

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.