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Finding the Fourth Proportional to 128,845.73, 193,343.96 and 53,959.59

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Solution

The fourth proportional to 128,845.73, 193,343.96 and 53,959.59 is: 80,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,845.73 : 193,343.96 = 53,959.59 : x
  2. Step 2: Convert to fraction form
    128,845.73/193,343.96 = 53,959.59/x
  3. Step 3: Cross multiply
    128,845.73x = 193,343.96 × 53,959.59
  4. Step 4: Simplify right side
    128,845.73x = 10,432,760,945.48
  5. Step 5: Solve for x
    x = 10,432,760,945.48/128,845.73
  6. Step 6: Final answer
    x = 80,970.95

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