Home / 87,825.96-131,738.72-67,864.48

Finding the Fourth Proportional to 87,825.96, 131,738.72 and 67,864.48

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Solution

The fourth proportional to 87,825.96, 131,738.72 and 67,864.48 is: 101,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.96 : 131,738.72 = 67,864.48 : x
  2. Step 2: Convert to fraction form
    87,825.96/131,738.72 = 67,864.48/x
  3. Step 3: Cross multiply
    87,825.96x = 131,738.72 × 67,864.48
  4. Step 4: Simplify right side
    87,825.96x = 8,940,379,728.67
  5. Step 5: Solve for x
    x = 8,940,379,728.67/87,825.96
  6. Step 6: Final answer
    x = 101,796.55

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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.