Home / 55,721.42-83,579.19-18,276.56

Finding the Fourth Proportional to 55,721.42, 83,579.19 and 18,276.56

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Solution

The fourth proportional to 55,721.42, 83,579.19 and 18,276.56 is: 27,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,721.42 : 83,579.19 = 18,276.56 : x
  2. Step 2: Convert to fraction form
    55,721.42/83,579.19 = 18,276.56/x
  3. Step 3: Cross multiply
    55,721.42x = 83,579.19 × 18,276.56
  4. Step 4: Simplify right side
    55,721.42x = 1,527,540,245.65
  5. Step 5: Solve for x
    x = 1,527,540,245.65/55,721.42
  6. Step 6: Final answer
    x = 27,413.88

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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.