Home / 87,343.26-120,520.20-49,095.72

Finding the Fourth Proportional to 87,343.26, 120,520.20 and 49,095.72

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Solution

The fourth proportional to 87,343.26, 120,520.20 and 49,095.72 is: 67,744.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,343.26 : 120,520.20 = 49,095.72 : x
  2. Step 2: Convert to fraction form
    87,343.26/120,520.20 = 49,095.72/x
  3. Step 3: Cross multiply
    87,343.26x = 120,520.20 × 49,095.72
  4. Step 4: Simplify right side
    87,343.26x = 5,917,025,993.54
  5. Step 5: Solve for x
    x = 5,917,025,993.54/87,343.26
  6. Step 6: Final answer
    x = 67,744.51

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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.