Home / 80,400.12-120,571.92-33,001.50

Finding the Fourth Proportional to 80,400.12, 120,571.92 and 33,001.50

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Solution

The fourth proportional to 80,400.12, 120,571.92 and 33,001.50 is: 49,490.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,400.12 : 120,571.92 = 33,001.50 : x
  2. Step 2: Convert to fraction form
    80,400.12/120,571.92 = 33,001.50/x
  3. Step 3: Cross multiply
    80,400.12x = 120,571.92 × 33,001.50
  4. Step 4: Simplify right side
    80,400.12x = 3,979,054,217.88
  5. Step 5: Solve for x
    x = 3,979,054,217.88/80,400.12
  6. Step 6: Final answer
    x = 49,490.65

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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.