Home / 54,117.20-81,188.60-17,181.20

Finding the Fourth Proportional to 54,117.20, 81,188.60 and 17,181.20

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Solution

The fourth proportional to 54,117.20, 81,188.60 and 17,181.20 is: 25,775.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,117.20 : 81,188.60 = 17,181.20 : x
  2. Step 2: Convert to fraction form
    54,117.20/81,188.60 = 17,181.20/x
  3. Step 3: Cross multiply
    54,117.20x = 81,188.60 × 17,181.20
  4. Step 4: Simplify right side
    54,117.20x = 1,394,917,574.32
  5. Step 5: Solve for x
    x = 1,394,917,574.32/54,117.20
  6. Step 6: Final answer
    x = 25,775.86

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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.