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Finding the Fourth Proportional to 54,606, 81,908.94 and 17,168.78

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Solution

The fourth proportional to 54,606, 81,908.94 and 17,168.78 is: 25,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,606 : 81,908.94 = 17,168.78 : x
  2. Step 2: Convert to fraction form
    54,606/81,908.94 = 17,168.78/x
  3. Step 3: Cross multiply
    54,606x = 81,908.94 × 17,168.78
  4. Step 4: Simplify right side
    54,606x = 1,406,276,570.89
  5. Step 5: Solve for x
    x = 1,406,276,570.89/54,606
  6. Step 6: Final answer
    x = 25,753.15

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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.