Home / 54,238.60-81,231.54-52,743.75

Finding the Fourth Proportional to 54,238.60, 81,231.54 and 52,743.75

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Solution

The fourth proportional to 54,238.60, 81,231.54 and 52,743.75 is: 78,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,238.60 : 81,231.54 = 52,743.75 : x
  2. Step 2: Convert to fraction form
    54,238.60/81,231.54 = 52,743.75/x
  3. Step 3: Cross multiply
    54,238.60x = 81,231.54 × 52,743.75
  4. Step 4: Simplify right side
    54,238.60x = 4,284,456,037.88
  5. Step 5: Solve for x
    x = 4,284,456,037.88/54,238.60
  6. Step 6: Final answer
    x = 78,992.75

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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.