Home / 80,209.72-120,273.09-35,212.66

Finding the Fourth Proportional to 80,209.72, 120,273.09 and 35,212.66

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Solution

The fourth proportional to 80,209.72, 120,273.09 and 35,212.66 is: 52,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,209.72 : 120,273.09 = 35,212.66 : x
  2. Step 2: Convert to fraction form
    80,209.72/120,273.09 = 35,212.66/x
  3. Step 3: Cross multiply
    80,209.72x = 120,273.09 × 35,212.66
  4. Step 4: Simplify right side
    80,209.72x = 4,235,135,425.32
  5. Step 5: Solve for x
    x = 4,235,135,425.32/80,209.72
  6. Step 6: Final answer
    x = 52,800.78

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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.