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Finding the Fourth Proportional to 53,789.25, 74,229.17 and 31,433.25

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Solution

The fourth proportional to 53,789.25, 74,229.17 and 31,433.25 is: 43,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,789.25 : 74,229.17 = 31,433.25 : x
  2. Step 2: Convert to fraction form
    53,789.25/74,229.17 = 31,433.25/x
  3. Step 3: Cross multiply
    53,789.25x = 74,229.17 × 31,433.25
  4. Step 4: Simplify right side
    53,789.25x = 2,333,263,900.74
  5. Step 5: Solve for x
    x = 2,333,263,900.74/53,789.25
  6. Step 6: Final answer
    x = 43,377.89

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