Home / 87,604.20-131,438.70-28,441.80

Finding the Fourth Proportional to 87,604.20, 131,438.70 and 28,441.80

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Solution

The fourth proportional to 87,604.20, 131,438.70 and 28,441.80 is: 42,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,604.20 : 131,438.70 = 28,441.80 : x
  2. Step 2: Convert to fraction form
    87,604.20/131,438.70 = 28,441.80/x
  3. Step 3: Cross multiply
    87,604.20x = 131,438.70 × 28,441.80
  4. Step 4: Simplify right side
    87,604.20x = 3,738,353,217.66
  5. Step 5: Solve for x
    x = 3,738,353,217.66/87,604.20
  6. Step 6: Final answer
    x = 42,673.22

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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.