Home / 87,940.32-131,772.12-67,998.52

Finding the Fourth Proportional to 87,940.32, 131,772.12 and 67,998.52

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Solution

The fourth proportional to 87,940.32, 131,772.12 and 67,998.52 is: 101,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.32 : 131,772.12 = 67,998.52 : x
  2. Step 2: Convert to fraction form
    87,940.32/131,772.12 = 67,998.52/x
  3. Step 3: Cross multiply
    87,940.32x = 131,772.12 × 67,998.52
  4. Step 4: Simplify right side
    87,940.32x = 8,960,309,137.26
  5. Step 5: Solve for x
    x = 8,960,309,137.26/87,940.32
  6. Step 6: Final answer
    x = 101,890.80

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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.