Home / 80,594.46-120,940.29-28,040.85

Finding the Fourth Proportional to 80,594.46, 120,940.29 and 28,040.85

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Solution

The fourth proportional to 80,594.46, 120,940.29 and 28,040.85 is: 42,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,594.46 : 120,940.29 = 28,040.85 : x
  2. Step 2: Convert to fraction form
    80,594.46/120,940.29 = 28,040.85/x
  3. Step 3: Cross multiply
    80,594.46x = 120,940.29 × 28,040.85
  4. Step 4: Simplify right side
    80,594.46x = 3,391,268,530.85
  5. Step 5: Solve for x
    x = 3,391,268,530.85/80,594.46
  6. Step 6: Final answer
    x = 42,078.18

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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.