Home / 87,854.40-131,749.20-37,936.80

Finding the Fourth Proportional to 87,854.40, 131,749.20 and 37,936.80

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Solution

The fourth proportional to 87,854.40, 131,749.20 and 37,936.80 is: 56,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,854.40 : 131,749.20 = 37,936.80 : x
  2. Step 2: Convert to fraction form
    87,854.40/131,749.20 = 37,936.80/x
  3. Step 3: Cross multiply
    87,854.40x = 131,749.20 × 37,936.80
  4. Step 4: Simplify right side
    87,854.40x = 4,998,143,050.56
  5. Step 5: Solve for x
    x = 4,998,143,050.56/87,854.40
  6. Step 6: Final answer
    x = 56,891.21

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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.