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Finding the Fourth Proportional to 55,742.80, 83,614.20 and 53,150.80

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Solution

The fourth proportional to 55,742.80, 83,614.20 and 53,150.80 is: 79,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,742.80 : 83,614.20 = 53,150.80 : x
  2. Step 2: Convert to fraction form
    55,742.80/83,614.20 = 53,150.80/x
  3. Step 3: Cross multiply
    55,742.80x = 83,614.20 × 53,150.80
  4. Step 4: Simplify right side
    55,742.80x = 4,444,161,621.36
  5. Step 5: Solve for x
    x = 4,444,161,621.36/55,742.80
  6. Step 6: Final answer
    x = 79,726.20

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