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Finding the Fourth Proportional to 72,571.83, 100,149.05 and 40,740.80

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Solution

The fourth proportional to 72,571.83, 100,149.05 and 40,740.80 is: 56,222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,571.83 : 100,149.05 = 40,740.80 : x
  2. Step 2: Convert to fraction form
    72,571.83/100,149.05 = 40,740.80/x
  3. Step 3: Cross multiply
    72,571.83x = 100,149.05 × 40,740.80
  4. Step 4: Simplify right side
    72,571.83x = 4,080,151,711.79
  5. Step 5: Solve for x
    x = 4,080,151,711.79/72,571.83
  6. Step 6: Final answer
    x = 56,222.25

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