Home / 87,445.17-131,209.29-45,317.43

Finding the Fourth Proportional to 87,445.17, 131,209.29 and 45,317.43

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Solution

The fourth proportional to 87,445.17, 131,209.29 and 45,317.43 is: 67,997.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.17 : 131,209.29 = 45,317.43 : x
  2. Step 2: Convert to fraction form
    87,445.17/131,209.29 = 45,317.43/x
  3. Step 3: Cross multiply
    87,445.17x = 131,209.29 × 45,317.43
  4. Step 4: Simplify right side
    87,445.17x = 5,946,067,814.92
  5. Step 5: Solve for x
    x = 5,946,067,814.92/87,445.17
  6. Step 6: Final answer
    x = 67,997.67

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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.