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Finding the Fourth Proportional to 72,977.91, 100,651.21 and 50,311.71

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Solution

The fourth proportional to 72,977.91, 100,651.21 and 50,311.71 is: 69,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,977.91 : 100,651.21 = 50,311.71 : x
  2. Step 2: Convert to fraction form
    72,977.91/100,651.21 = 50,311.71/x
  3. Step 3: Cross multiply
    72,977.91x = 100,651.21 × 50,311.71
  4. Step 4: Simplify right side
    72,977.91x = 5,063,934,079.81
  5. Step 5: Solve for x
    x = 5,063,934,079.81/72,977.91
  6. Step 6: Final answer
    x = 69,389.96

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