Home / 87,580.26-131,166.27-67,795.20

Finding the Fourth Proportional to 87,580.26, 131,166.27 and 67,795.20

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Solution

The fourth proportional to 87,580.26, 131,166.27 and 67,795.20 is: 101,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,580.26 : 131,166.27 = 67,795.20 : x
  2. Step 2: Convert to fraction form
    87,580.26/131,166.27 = 67,795.20/x
  3. Step 3: Cross multiply
    87,580.26x = 131,166.27 × 67,795.20
  4. Step 4: Simplify right side
    87,580.26x = 8,892,443,507.90
  5. Step 5: Solve for x
    x = 8,892,443,507.90/87,580.26
  6. Step 6: Final answer
    x = 101,534.79

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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.