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Finding the Fourth Proportional to 54,054.96, 81,081.48 and 17,118

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Solution

The fourth proportional to 54,054.96, 81,081.48 and 17,118 is: 25,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,054.96 : 81,081.48 = 17,118 : x
  2. Step 2: Convert to fraction form
    54,054.96/81,081.48 = 17,118/x
  3. Step 3: Cross multiply
    54,054.96x = 81,081.48 × 17,118
  4. Step 4: Simplify right side
    54,054.96x = 1,387,952,774.64
  5. Step 5: Solve for x
    x = 1,387,952,774.64/54,054.96
  6. Step 6: Final answer
    x = 25,676.70

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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.