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Finding the Fourth Proportional to 80,520.29, 120,716.90 and 50,875.64

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Solution

The fourth proportional to 80,520.29, 120,716.90 and 50,875.64 is: 76,273.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520.29 : 120,716.90 = 50,875.64 : x
  2. Step 2: Convert to fraction form
    80,520.29/120,716.90 = 50,875.64/x
  3. Step 3: Cross multiply
    80,520.29x = 120,716.90 × 50,875.64
  4. Step 4: Simplify right side
    80,520.29x = 6,141,549,069.92
  5. Step 5: Solve for x
    x = 6,141,549,069.92/80,520.29
  6. Step 6: Final answer
    x = 76,273.32

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