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Finding the Fourth Proportional to 115,989.60, 173,854.80 and 49,418.40

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Solution

The fourth proportional to 115,989.60, 173,854.80 and 49,418.40 is: 74,072.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,989.60 : 173,854.80 = 49,418.40 : x
  2. Step 2: Convert to fraction form
    115,989.60/173,854.80 = 49,418.40/x
  3. Step 3: Cross multiply
    115,989.60x = 173,854.80 × 49,418.40
  4. Step 4: Simplify right side
    115,989.60x = 8,591,626,048.32
  5. Step 5: Solve for x
    x = 8,591,626,048.32/115,989.60
  6. Step 6: Final answer
    x = 74,072.38

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