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Finding the Fourth Proportional to 66,898.98, 100,348.47 and 20,151.86

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Solution

The fourth proportional to 66,898.98, 100,348.47 and 20,151.86 is: 30,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,898.98 : 100,348.47 = 20,151.86 : x
  2. Step 2: Convert to fraction form
    66,898.98/100,348.47 = 20,151.86/x
  3. Step 3: Cross multiply
    66,898.98x = 100,348.47 × 20,151.86
  4. Step 4: Simplify right side
    66,898.98x = 2,022,207,816.91
  5. Step 5: Solve for x
    x = 2,022,207,816.91/66,898.98
  6. Step 6: Final answer
    x = 30,227.78

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