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Finding the Fourth Proportional to 55,018.47, 81,785.79 and 53,402.14

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Solution

The fourth proportional to 55,018.47, 81,785.79 and 53,402.14 is: 79,383.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,018.47 : 81,785.79 = 53,402.14 : x
  2. Step 2: Convert to fraction form
    55,018.47/81,785.79 = 53,402.14/x
  3. Step 3: Cross multiply
    55,018.47x = 81,785.79 × 53,402.14
  4. Step 4: Simplify right side
    55,018.47x = 4,367,535,774.68
  5. Step 5: Solve for x
    x = 4,367,535,774.68/55,018.47
  6. Step 6: Final answer
    x = 79,383.09

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