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Finding the Fourth Proportional to 82,786.51, 124,198.08 and 30,195.82

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Solution

The fourth proportional to 82,786.51, 124,198.08 and 30,195.82 is: 45,300.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,786.51 : 124,198.08 = 30,195.82 : x
  2. Step 2: Convert to fraction form
    82,786.51/124,198.08 = 30,195.82/x
  3. Step 3: Cross multiply
    82,786.51x = 124,198.08 × 30,195.82
  4. Step 4: Simplify right side
    82,786.51x = 3,750,262,868.03
  5. Step 5: Solve for x
    x = 3,750,262,868.03/82,786.51
  6. Step 6: Final answer
    x = 45,300.41

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