Home / 81,324.35-121,956.18-28,001.26

Finding the Fourth Proportional to 81,324.35, 121,956.18 and 28,001.26

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Solution

The fourth proportional to 81,324.35, 121,956.18 and 28,001.26 is: 41,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,324.35 : 121,956.18 = 28,001.26 : x
  2. Step 2: Convert to fraction form
    81,324.35/121,956.18 = 28,001.26/x
  3. Step 3: Cross multiply
    81,324.35x = 121,956.18 × 28,001.26
  4. Step 4: Simplify right side
    81,324.35x = 3,414,926,704.79
  5. Step 5: Solve for x
    x = 3,414,926,704.79/81,324.35
  6. Step 6: Final answer
    x = 41,991.44

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