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Finding the Fourth Proportional to 78,820.78, 108,756.74 and 50,151.82

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Solution

The fourth proportional to 78,820.78, 108,756.74 and 50,151.82 is: 69,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820.78 : 108,756.74 = 50,151.82 : x
  2. Step 2: Convert to fraction form
    78,820.78/108,756.74 = 50,151.82/x
  3. Step 3: Cross multiply
    78,820.78x = 108,756.74 × 50,151.82
  4. Step 4: Simplify right side
    78,820.78x = 5,454,348,448.27
  5. Step 5: Solve for x
    x = 5,454,348,448.27/78,820.78
  6. Step 6: Final answer
    x = 69,199.37

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