Home / 87,910.20-131,861.06-28,738.04

Finding the Fourth Proportional to 87,910.20, 131,861.06 and 28,738.04

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Solution

The fourth proportional to 87,910.20, 131,861.06 and 28,738.04 is: 43,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910.20 : 131,861.06 = 28,738.04 : x
  2. Step 2: Convert to fraction form
    87,910.20/131,861.06 = 28,738.04/x
  3. Step 3: Cross multiply
    87,910.20x = 131,861.06 × 28,738.04
  4. Step 4: Simplify right side
    87,910.20x = 3,789,428,416.72
  5. Step 5: Solve for x
    x = 3,789,428,416.72/87,910.20
  6. Step 6: Final answer
    x = 43,105.67

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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.