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Finding the Fourth Proportional to 92,955.91, 128,290.09 and 55,230.16

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Solution

The fourth proportional to 92,955.91, 128,290.09 and 55,230.16 is: 76,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,955.91 : 128,290.09 = 55,230.16 : x
  2. Step 2: Convert to fraction form
    92,955.91/128,290.09 = 55,230.16/x
  3. Step 3: Cross multiply
    92,955.91x = 128,290.09 × 55,230.16
  4. Step 4: Simplify right side
    92,955.91x = 7,085,481,508.91
  5. Step 5: Solve for x
    x = 7,085,481,508.91/92,955.91
  6. Step 6: Final answer
    x = 76,224.11

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