Home / 87,450.20-120,660.54-49,745.24

Finding the Fourth Proportional to 87,450.20, 120,660.54 and 49,745.24

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Solution

The fourth proportional to 87,450.20, 120,660.54 and 49,745.24 is: 68,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,450.20 : 120,660.54 = 49,745.24 : x
  2. Step 2: Convert to fraction form
    87,450.20/120,660.54 = 49,745.24/x
  3. Step 3: Cross multiply
    87,450.20x = 120,660.54 × 49,745.24
  4. Step 4: Simplify right side
    87,450.20x = 6,002,287,520.83
  5. Step 5: Solve for x
    x = 6,002,287,520.83/87,450.20
  6. Step 6: Final answer
    x = 68,636.64

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1.5x scale

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.