Home / 54,481.92-81,681.34-28,169.88

Finding the Fourth Proportional to 54,481.92, 81,681.34 and 28,169.88

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Solution

The fourth proportional to 54,481.92, 81,681.34 and 28,169.88 is: 42,233.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,481.92 : 81,681.34 = 28,169.88 : x
  2. Step 2: Convert to fraction form
    54,481.92/81,681.34 = 28,169.88/x
  3. Step 3: Cross multiply
    54,481.92x = 81,681.34 × 28,169.88
  4. Step 4: Simplify right side
    54,481.92x = 2,300,953,546.04
  5. Step 5: Solve for x
    x = 2,300,953,546.04/54,481.92
  6. Step 6: Final answer
    x = 42,233.34

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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.