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Finding the Fourth Proportional to 81,570.33, 122,340.87 and 21,599.19

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Solution

The fourth proportional to 81,570.33, 122,340.87 and 21,599.19 is: 32,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570.33 : 122,340.87 = 21,599.19 : x
  2. Step 2: Convert to fraction form
    81,570.33/122,340.87 = 21,599.19/x
  3. Step 3: Cross multiply
    81,570.33x = 122,340.87 × 21,599.19
  4. Step 4: Simplify right side
    81,570.33x = 2,642,463,695.90
  5. Step 5: Solve for x
    x = 2,642,463,695.90/81,570.33
  6. Step 6: Final answer
    x = 32,394.91

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