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Finding the Fourth Proportional to 78,062.44, 117,115.52 and 31,348.12

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Solution

The fourth proportional to 78,062.44, 117,115.52 and 31,348.12 is: 47,030.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,062.44 : 117,115.52 = 31,348.12 : x
  2. Step 2: Convert to fraction form
    78,062.44/117,115.52 = 31,348.12/x
  3. Step 3: Cross multiply
    78,062.44x = 117,115.52 × 31,348.12
  4. Step 4: Simplify right side
    78,062.44x = 3,671,351,374.82
  5. Step 5: Solve for x
    x = 3,671,351,374.82/78,062.44
  6. Step 6: Final answer
    x = 47,030.96

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