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Finding the Fourth Proportional to 55,939.59, 83,910.51 and 20,872.26

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Solution

The fourth proportional to 55,939.59, 83,910.51 and 20,872.26 is: 31,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,939.59 : 83,910.51 = 20,872.26 : x
  2. Step 2: Convert to fraction form
    55,939.59/83,910.51 = 20,872.26/x
  3. Step 3: Cross multiply
    55,939.59x = 83,910.51 × 20,872.26
  4. Step 4: Simplify right side
    55,939.59x = 1,751,401,981.45
  5. Step 5: Solve for x
    x = 1,751,401,981.45/55,939.59
  6. Step 6: Final answer
    x = 31,308.81

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