Home / 54,034.11-80,995.74-20,745.21

Finding the Fourth Proportional to 54,034.11, 80,995.74 and 20,745.21

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Solution

The fourth proportional to 54,034.11, 80,995.74 and 20,745.21 is: 31,096.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,034.11 : 80,995.74 = 20,745.21 : x
  2. Step 2: Convert to fraction form
    54,034.11/80,995.74 = 20,745.21/x
  3. Step 3: Cross multiply
    54,034.11x = 80,995.74 × 20,745.21
  4. Step 4: Simplify right side
    54,034.11x = 1,680,273,635.41
  5. Step 5: Solve for x
    x = 1,680,273,635.41/54,034.11
  6. Step 6: Final answer
    x = 31,096.54

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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.