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Finding the Fourth Proportional to 53,785.76, 74,213.44 and 31,425.44

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Solution

The fourth proportional to 53,785.76, 74,213.44 and 31,425.44 is: 43,360.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,785.76 : 74,213.44 = 31,425.44 : x
  2. Step 2: Convert to fraction form
    53,785.76/74,213.44 = 31,425.44/x
  3. Step 3: Cross multiply
    53,785.76x = 74,213.44 × 31,425.44
  4. Step 4: Simplify right side
    53,785.76x = 2,332,190,005.91
  5. Step 5: Solve for x
    x = 2,332,190,005.91/53,785.76
  6. Step 6: Final answer
    x = 43,360.73

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