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Finding the Fourth Proportional to 43,720.16, 65,593.20 and 14,142.56

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Solution

The fourth proportional to 43,720.16, 65,593.20 and 14,142.56 is: 21,218.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,720.16 : 65,593.20 = 14,142.56 : x
  2. Step 2: Convert to fraction form
    43,720.16/65,593.20 = 14,142.56/x
  3. Step 3: Cross multiply
    43,720.16x = 65,593.20 × 14,142.56
  4. Step 4: Simplify right side
    43,720.16x = 927,655,766.59
  5. Step 5: Solve for x
    x = 927,655,766.59/43,720.16
  6. Step 6: Final answer
    x = 21,218.03

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