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Finding the Fourth Proportional to 83,713.22, 115,554.57 and 55,428.02

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Solution

The fourth proportional to 83,713.22, 115,554.57 and 55,428.02 is: 76,510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,713.22 : 115,554.57 = 55,428.02 : x
  2. Step 2: Convert to fraction form
    83,713.22/115,554.57 = 55,428.02/x
  3. Step 3: Cross multiply
    83,713.22x = 115,554.57 × 55,428.02
  4. Step 4: Simplify right side
    83,713.22x = 6,404,961,017.05
  5. Step 5: Solve for x
    x = 6,404,961,017.05/83,713.22
  6. Step 6: Final answer
    x = 76,510.75

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