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Finding the Fourth Proportional to 53,155.68, 79,743.34 and 21,993.36

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Solution

The fourth proportional to 53,155.68, 79,743.34 and 21,993.36 is: 32,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,155.68 : 79,743.34 = 21,993.36 : x
  2. Step 2: Convert to fraction form
    53,155.68/79,743.34 = 21,993.36/x
  3. Step 3: Cross multiply
    53,155.68x = 79,743.34 × 21,993.36
  4. Step 4: Simplify right side
    53,155.68x = 1,753,823,984.22
  5. Step 5: Solve for x
    x = 1,753,823,984.22/53,155.68
  6. Step 6: Final answer
    x = 32,994.10

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