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Finding the Fourth Proportional to 110,515.20, 165,772.80 and 57,940.80

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Solution

The fourth proportional to 110,515.20, 165,772.80 and 57,940.80 is: 86,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,515.20 : 165,772.80 = 57,940.80 : x
  2. Step 2: Convert to fraction form
    110,515.20/165,772.80 = 57,940.80/x
  3. Step 3: Cross multiply
    110,515.20x = 165,772.80 × 57,940.80
  4. Step 4: Simplify right side
    110,515.20x = 9,605,008,650.24
  5. Step 5: Solve for x
    x = 9,605,008,650.24/110,515.20
  6. Step 6: Final answer
    x = 86,911.20

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