Home / 54,540.35-81,790.26-18,992.54

Finding the Fourth Proportional to 54,540.35, 81,790.26 and 18,992.54

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Solution

The fourth proportional to 54,540.35, 81,790.26 and 18,992.54 is: 28,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,540.35 : 81,790.26 = 18,992.54 : x
  2. Step 2: Convert to fraction form
    54,540.35/81,790.26 = 18,992.54/x
  3. Step 3: Cross multiply
    54,540.35x = 81,790.26 × 18,992.54
  4. Step 4: Simplify right side
    54,540.35x = 1,553,404,627.67
  5. Step 5: Solve for x
    x = 1,553,404,627.67/54,540.35
  6. Step 6: Final answer
    x = 28,481.75

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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.