Home / 54,630.18-81,930.68-15,189.48

Finding the Fourth Proportional to 54,630.18, 81,930.68 and 15,189.48

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Solution

The fourth proportional to 54,630.18, 81,930.68 and 15,189.48 is: 22,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,630.18 : 81,930.68 = 15,189.48 : x
  2. Step 2: Convert to fraction form
    54,630.18/81,930.68 = 15,189.48/x
  3. Step 3: Cross multiply
    54,630.18x = 81,930.68 × 15,189.48
  4. Step 4: Simplify right side
    54,630.18x = 1,244,484,425.25
  5. Step 5: Solve for x
    x = 1,244,484,425.25/54,630.18
  6. Step 6: Final answer
    x = 22,780.16

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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.