Home / 87,664.20-120,881.46-55,792.32

Finding the Fourth Proportional to 87,664.20, 120,881.46 and 55,792.32

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Solution

The fourth proportional to 87,664.20, 120,881.46 and 55,792.32 is: 76,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,664.20 : 120,881.46 = 55,792.32 : x
  2. Step 2: Convert to fraction form
    87,664.20/120,881.46 = 55,792.32/x
  3. Step 3: Cross multiply
    87,664.20x = 120,881.46 × 55,792.32
  4. Step 4: Simplify right side
    87,664.20x = 6,744,257,098.39
  5. Step 5: Solve for x
    x = 6,744,257,098.39/87,664.20
  6. Step 6: Final answer
    x = 76,932.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.