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Finding the Fourth Proportional to 78,223.98, 107,909.35 and 49,495.23

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Solution

The fourth proportional to 78,223.98, 107,909.35 and 49,495.23 is: 68,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,223.98 : 107,909.35 = 49,495.23 : x
  2. Step 2: Convert to fraction form
    78,223.98/107,909.35 = 49,495.23/x
  3. Step 3: Cross multiply
    78,223.98x = 107,909.35 × 49,495.23
  4. Step 4: Simplify right side
    78,223.98x = 5,340,998,097.40
  5. Step 5: Solve for x
    x = 5,340,998,097.40/78,223.98
  6. Step 6: Final answer
    x = 68,278.27

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