Home / 80,764.62-111,392.19-55,286.07

Finding the Fourth Proportional to 80,764.62, 111,392.19 and 55,286.07

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Solution

The fourth proportional to 80,764.62, 111,392.19 and 55,286.07 is: 76,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,764.62 : 111,392.19 = 55,286.07 : x
  2. Step 2: Convert to fraction form
    80,764.62/111,392.19 = 55,286.07/x
  3. Step 3: Cross multiply
    80,764.62x = 111,392.19 × 55,286.07
  4. Step 4: Simplify right side
    80,764.62x = 6,158,436,413.79
  5. Step 5: Solve for x
    x = 6,158,436,413.79/80,764.62
  6. Step 6: Final answer
    x = 76,251.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.