Home / 80,581.62-120,924.88-30,662.13

Finding the Fourth Proportional to 80,581.62, 120,924.88 and 30,662.13

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Solution

The fourth proportional to 80,581.62, 120,924.88 and 30,662.13 is: 46,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,581.62 : 120,924.88 = 30,662.13 : x
  2. Step 2: Convert to fraction form
    80,581.62/120,924.88 = 30,662.13/x
  3. Step 3: Cross multiply
    80,581.62x = 120,924.88 × 30,662.13
  4. Step 4: Simplify right side
    80,581.62x = 3,707,814,390.79
  5. Step 5: Solve for x
    x = 3,707,814,390.79/80,581.62
  6. Step 6: Final answer
    x = 46,013.15

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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.