Home / 80,320.75-120,497.46-27,723.40

Finding the Fourth Proportional to 80,320.75, 120,497.46 and 27,723.40

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Solution

The fourth proportional to 80,320.75, 120,497.46 and 27,723.40 is: 41,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,320.75 : 120,497.46 = 27,723.40 : x
  2. Step 2: Convert to fraction form
    80,320.75/120,497.46 = 27,723.40/x
  3. Step 3: Cross multiply
    80,320.75x = 120,497.46 × 27,723.40
  4. Step 4: Simplify right side
    80,320.75x = 3,340,599,282.56
  5. Step 5: Solve for x
    x = 3,340,599,282.56/80,320.75
  6. Step 6: Final answer
    x = 41,590.74

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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.