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Finding the Fourth Proportional to 78,084.50, 107,712.63 and 49,395.33

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Solution

The fourth proportional to 78,084.50, 107,712.63 and 49,395.33 is: 68,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,084.50 : 107,712.63 = 49,395.33 : x
  2. Step 2: Convert to fraction form
    78,084.50/107,712.63 = 49,395.33/x
  3. Step 3: Cross multiply
    78,084.50x = 107,712.63 × 49,395.33
  4. Step 4: Simplify right side
    78,084.50x = 5,320,500,904.02
  5. Step 5: Solve for x
    x = 5,320,500,904.02/78,084.50
  6. Step 6: Final answer
    x = 68,137.74

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