Home / 43,781.73-65,727.96-20,112.93

Finding the Fourth Proportional to 43,781.73, 65,727.96 and 20,112.93

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Solution

The fourth proportional to 43,781.73, 65,727.96 and 20,112.93 is: 30,194.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,781.73 : 65,727.96 = 20,112.93 : x
  2. Step 2: Convert to fraction form
    43,781.73/65,727.96 = 20,112.93/x
  3. Step 3: Cross multiply
    43,781.73x = 65,727.96 × 20,112.93
  4. Step 4: Simplify right side
    43,781.73x = 1,321,981,858.52
  5. Step 5: Solve for x
    x = 1,321,981,858.52/43,781.73
  6. Step 6: Final answer
    x = 30,194.83

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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.