Home / 87,163.30-130,680.15-47,764.90

Finding the Fourth Proportional to 87,163.30, 130,680.15 and 47,764.90

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Solution

The fourth proportional to 87,163.30, 130,680.15 and 47,764.90 is: 71,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,163.30 : 130,680.15 = 47,764.90 : x
  2. Step 2: Convert to fraction form
    87,163.30/130,680.15 = 47,764.90/x
  3. Step 3: Cross multiply
    87,163.30x = 130,680.15 × 47,764.90
  4. Step 4: Simplify right side
    87,163.30x = 6,241,924,296.74
  5. Step 5: Solve for x
    x = 6,241,924,296.74/87,163.30
  6. Step 6: Final answer
    x = 71,611.84

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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.