Home / 80,619.39-120,943.62-33,208.61

Finding the Fourth Proportional to 80,619.39, 120,943.62 and 33,208.61

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Solution

The fourth proportional to 80,619.39, 120,943.62 and 33,208.61 is: 49,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,619.39 : 120,943.62 = 33,208.61 : x
  2. Step 2: Convert to fraction form
    80,619.39/120,943.62 = 33,208.61/x
  3. Step 3: Cross multiply
    80,619.39x = 120,943.62 × 33,208.61
  4. Step 4: Simplify right side
    80,619.39x = 4,016,369,407.45
  5. Step 5: Solve for x
    x = 4,016,369,407.45/80,619.39
  6. Step 6: Final answer
    x = 49,818.90

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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.