Home / 87,396.39-131,138.34-40,011.39

Finding the Fourth Proportional to 87,396.39, 131,138.34 and 40,011.39

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Solution

The fourth proportional to 87,396.39, 131,138.34 and 40,011.39 is: 60,037.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,396.39 : 131,138.34 = 40,011.39 : x
  2. Step 2: Convert to fraction form
    87,396.39/131,138.34 = 40,011.39/x
  3. Step 3: Cross multiply
    87,396.39x = 131,138.34 × 40,011.39
  4. Step 4: Simplify right side
    87,396.39x = 5,247,027,265.69
  5. Step 5: Solve for x
    x = 5,247,027,265.69/87,396.39
  6. Step 6: Final answer
    x = 60,037.12

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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.