Home / 80,359.06-120,454.93-27,011.38

Finding the Fourth Proportional to 80,359.06, 120,454.93 and 27,011.38

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Solution

The fourth proportional to 80,359.06, 120,454.93 and 27,011.38 is: 40,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,359.06 : 120,454.93 = 27,011.38 : x
  2. Step 2: Convert to fraction form
    80,359.06/120,454.93 = 27,011.38/x
  3. Step 3: Cross multiply
    80,359.06x = 120,454.93 × 27,011.38
  4. Step 4: Simplify right side
    80,359.06x = 3,253,653,887.10
  5. Step 5: Solve for x
    x = 3,253,653,887.10/80,359.06
  6. Step 6: Final answer
    x = 40,488.95

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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.