Home / 87,396.83-120,607.46-49,155.77

Finding the Fourth Proportional to 87,396.83, 120,607.46 and 49,155.77

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Solution

The fourth proportional to 87,396.83, 120,607.46 and 49,155.77 is: 67,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,396.83 : 120,607.46 = 49,155.77 : x
  2. Step 2: Convert to fraction form
    87,396.83/120,607.46 = 49,155.77/x
  3. Step 3: Cross multiply
    87,396.83x = 120,607.46 × 49,155.77
  4. Step 4: Simplify right side
    87,396.83x = 5,928,552,619.78
  5. Step 5: Solve for x
    x = 5,928,552,619.78/87,396.83
  6. Step 6: Final answer
    x = 67,834.87

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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.