Home / 87,361.62-120,558.38-49,635.87

Finding the Fourth Proportional to 87,361.62, 120,558.38 and 49,635.87

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Solution

The fourth proportional to 87,361.62, 120,558.38 and 49,635.87 is: 68,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361.62 : 120,558.38 = 49,635.87 : x
  2. Step 2: Convert to fraction form
    87,361.62/120,558.38 = 49,635.87/x
  3. Step 3: Cross multiply
    87,361.62x = 120,558.38 × 49,635.87
  4. Step 4: Simplify right side
    87,361.62x = 5,984,019,828.91
  5. Step 5: Solve for x
    x = 5,984,019,828.91/87,361.62
  6. Step 6: Final answer
    x = 68,497.13

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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.