Home / 80,084.36-120,115.26-50,411.72

Finding the Fourth Proportional to 80,084.36, 120,115.26 and 50,411.72

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Solution

The fourth proportional to 80,084.36, 120,115.26 and 50,411.72 is: 75,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,084.36 : 120,115.26 = 50,411.72 : x
  2. Step 2: Convert to fraction form
    80,084.36/120,115.26 = 50,411.72/x
  3. Step 3: Cross multiply
    80,084.36x = 120,115.26 × 50,411.72
  4. Step 4: Simplify right side
    80,084.36x = 6,055,216,854.85
  5. Step 5: Solve for x
    x = 6,055,216,854.85/80,084.36
  6. Step 6: Final answer
    x = 75,610.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.