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Finding the Fourth Proportional to 100,441.77, 138,610.77 and 55,118.49

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Solution

The fourth proportional to 100,441.77, 138,610.77 and 55,118.49 is: 76,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,441.77 : 138,610.77 = 55,118.49 : x
  2. Step 2: Convert to fraction form
    100,441.77/138,610.77 = 55,118.49/x
  3. Step 3: Cross multiply
    100,441.77x = 138,610.77 × 55,118.49
  4. Step 4: Simplify right side
    100,441.77x = 7,640,016,340.14
  5. Step 5: Solve for x
    x = 7,640,016,340.14/100,441.77
  6. Step 6: Final answer
    x = 76,064.13

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