Home / 87,921.09-131,902.38-28,756.53

Finding the Fourth Proportional to 87,921.09, 131,902.38 and 28,756.53

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Solution

The fourth proportional to 87,921.09, 131,902.38 and 28,756.53 is: 43,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,921.09 : 131,902.38 = 28,756.53 : x
  2. Step 2: Convert to fraction form
    87,921.09/131,902.38 = 28,756.53/x
  3. Step 3: Cross multiply
    87,921.09x = 131,902.38 × 28,756.53
  4. Step 4: Simplify right side
    87,921.09x = 3,793,054,747.54
  5. Step 5: Solve for x
    x = 3,793,054,747.54/87,921.09
  6. Step 6: Final answer
    x = 43,141.58

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