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Finding the Fourth Proportional to 91,290.11, 136,921.32 and 32,111.91

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Solution

The fourth proportional to 91,290.11, 136,921.32 and 32,111.91 is: 48,163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,290.11 : 136,921.32 = 32,111.91 : x
  2. Step 2: Convert to fraction form
    91,290.11/136,921.32 = 32,111.91/x
  3. Step 3: Cross multiply
    91,290.11x = 136,921.32 × 32,111.91
  4. Step 4: Simplify right side
    91,290.11x = 4,396,805,104.92
  5. Step 5: Solve for x
    x = 4,396,805,104.92/91,290.11
  6. Step 6: Final answer
    x = 48,163.00

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