Home / 54,454.72-81,660.92-21,170.38

Finding the Fourth Proportional to 54,454.72, 81,660.92 and 21,170.38

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Solution

The fourth proportional to 54,454.72, 81,660.92 and 21,170.38 is: 31,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,454.72 : 81,660.92 = 21,170.38 : x
  2. Step 2: Convert to fraction form
    54,454.72/81,660.92 = 21,170.38/x
  3. Step 3: Cross multiply
    54,454.72x = 81,660.92 × 21,170.38
  4. Step 4: Simplify right side
    54,454.72x = 1,728,792,707.55
  5. Step 5: Solve for x
    x = 1,728,792,707.55/54,454.72
  6. Step 6: Final answer
    x = 31,747.34

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1.5x scale

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.