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Finding the Fourth Proportional to 80,665.41, 120,863.55 and 56,934.06

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Solution

The fourth proportional to 80,665.41, 120,863.55 and 56,934.06 is: 85,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,665.41 : 120,863.55 = 56,934.06 : x
  2. Step 2: Convert to fraction form
    80,665.41/120,863.55 = 56,934.06/x
  3. Step 3: Cross multiply
    80,665.41x = 120,863.55 × 56,934.06
  4. Step 4: Simplify right side
    80,665.41x = 6,881,252,607.51
  5. Step 5: Solve for x
    x = 6,881,252,607.51/80,665.41
  6. Step 6: Final answer
    x = 85,306.11

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