Home / 86,111.44-129,169.60-23,781.96

Finding the Fourth Proportional to 86,111.44, 129,169.60 and 23,781.96

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Solution

The fourth proportional to 86,111.44, 129,169.60 and 23,781.96 is: 35,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,111.44 : 129,169.60 = 23,781.96 : x
  2. Step 2: Convert to fraction form
    86,111.44/129,169.60 = 23,781.96/x
  3. Step 3: Cross multiply
    86,111.44x = 129,169.60 × 23,781.96
  4. Step 4: Simplify right side
    86,111.44x = 3,071,906,260.42
  5. Step 5: Solve for x
    x = 3,071,906,260.42/86,111.44
  6. Step 6: Final answer
    x = 35,673.61

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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.