Home / 80,580.62-120,923.38-30,661.13

Finding the Fourth Proportional to 80,580.62, 120,923.38 and 30,661.13

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Solution

The fourth proportional to 80,580.62, 120,923.38 and 30,661.13 is: 46,011.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,580.62 : 120,923.38 = 30,661.13 : x
  2. Step 2: Convert to fraction form
    80,580.62/120,923.38 = 30,661.13/x
  3. Step 3: Cross multiply
    80,580.62x = 120,923.38 × 30,661.13
  4. Step 4: Simplify right side
    80,580.62x = 3,707,647,814.85
  5. Step 5: Solve for x
    x = 3,707,647,814.85/80,580.62
  6. Step 6: Final answer
    x = 46,011.66

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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.