Home / 87,759.59-131,650.38-28,579.37

Finding the Fourth Proportional to 87,759.59, 131,650.38 and 28,579.37

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Solution

The fourth proportional to 87,759.59, 131,650.38 and 28,579.37 is: 42,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,759.59 : 131,650.38 = 28,579.37 : x
  2. Step 2: Convert to fraction form
    87,759.59/131,650.38 = 28,579.37/x
  3. Step 3: Cross multiply
    87,759.59x = 131,650.38 × 28,579.37
  4. Step 4: Simplify right side
    87,759.59x = 3,762,484,262.41
  5. Step 5: Solve for x
    x = 3,762,484,262.41/87,759.59
  6. Step 6: Final answer
    x = 42,872.63

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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.