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Finding the Fourth Proportional to 54,563.52, 81,845.06 and 15,120.53

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Solution

The fourth proportional to 54,563.52, 81,845.06 and 15,120.53 is: 22,680.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,563.52 : 81,845.06 = 15,120.53 : x
  2. Step 2: Convert to fraction form
    54,563.52/81,845.06 = 15,120.53/x
  3. Step 3: Cross multiply
    54,563.52x = 81,845.06 × 15,120.53
  4. Step 4: Simplify right side
    54,563.52x = 1,237,540,200.25
  5. Step 5: Solve for x
    x = 1,237,540,200.25/54,563.52
  6. Step 6: Final answer
    x = 22,680.73

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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.