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Finding the Fourth Proportional to 85,990.08, 129,034.92 and 36,065.72

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Solution

The fourth proportional to 85,990.08, 129,034.92 and 36,065.72 is: 54,119.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,990.08 : 129,034.92 = 36,065.72 : x
  2. Step 2: Convert to fraction form
    85,990.08/129,034.92 = 36,065.72/x
  3. Step 3: Cross multiply
    85,990.08x = 129,034.92 × 36,065.72
  4. Step 4: Simplify right side
    85,990.08x = 4,653,737,294.94
  5. Step 5: Solve for x
    x = 4,653,737,294.94/85,990.08
  6. Step 6: Final answer
    x = 54,119.47

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