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Finding the Fourth Proportional to 54,051, 81,089.46 and 17,115

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Solution

The fourth proportional to 54,051, 81,089.46 and 17,115 is: 25,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,051 : 81,089.46 = 17,115 : x
  2. Step 2: Convert to fraction form
    54,051/81,089.46 = 17,115/x
  3. Step 3: Cross multiply
    54,051x = 81,089.46 × 17,115
  4. Step 4: Simplify right side
    54,051x = 1,387,846,107.90
  5. Step 5: Solve for x
    x = 1,387,846,107.90/54,051
  6. Step 6: Final answer
    x = 25,676.60

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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.