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Finding the Fourth Proportional to 78,317.03, 117,379.04 and 30,884.41

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Solution

The fourth proportional to 78,317.03, 117,379.04 and 30,884.41 is: 46,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,317.03 : 117,379.04 = 30,884.41 : x
  2. Step 2: Convert to fraction form
    78,317.03/117,379.04 = 30,884.41/x
  3. Step 3: Cross multiply
    78,317.03x = 117,379.04 × 30,884.41
  4. Step 4: Simplify right side
    78,317.03x = 3,625,181,902.54
  5. Step 5: Solve for x
    x = 3,625,181,902.54/78,317.03
  6. Step 6: Final answer
    x = 46,288.55

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