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Finding the Fourth Proportional to 172,883.28, 259,324.92 and 54,563.88

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Solution

The fourth proportional to 172,883.28, 259,324.92 and 54,563.88 is: 81,845.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,883.28 : 259,324.92 = 54,563.88 : x
  2. Step 2: Convert to fraction form
    172,883.28/259,324.92 = 54,563.88/x
  3. Step 3: Cross multiply
    172,883.28x = 259,324.92 × 54,563.88
  4. Step 4: Simplify right side
    172,883.28x = 14,149,773,815.89
  5. Step 5: Solve for x
    x = 14,149,773,815.89/172,883.28
  6. Step 6: Final answer
    x = 81,845.82

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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.