Home / 87,415.20-131,176.80-34,819.20

Finding the Fourth Proportional to 87,415.20, 131,176.80 and 34,819.20

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Solution

The fourth proportional to 87,415.20, 131,176.80 and 34,819.20 is: 52,250.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,415.20 : 131,176.80 = 34,819.20 : x
  2. Step 2: Convert to fraction form
    87,415.20/131,176.80 = 34,819.20/x
  3. Step 3: Cross multiply
    87,415.20x = 131,176.80 × 34,819.20
  4. Step 4: Simplify right side
    87,415.20x = 4,567,471,234.56
  5. Step 5: Solve for x
    x = 4,567,471,234.56/87,415.20
  6. Step 6: Final answer
    x = 52,250.31

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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.