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Finding the Fourth Proportional to 101,578.82, 140,168.09 and 56,255.60

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Solution

The fourth proportional to 101,578.82, 140,168.09 and 56,255.60 is: 77,626.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,578.82 : 140,168.09 = 56,255.60 : x
  2. Step 2: Convert to fraction form
    101,578.82/140,168.09 = 56,255.60/x
  3. Step 3: Cross multiply
    101,578.82x = 140,168.09 × 56,255.60
  4. Step 4: Simplify right side
    101,578.82x = 7,885,240,494.86
  5. Step 5: Solve for x
    x = 7,885,240,494.86/101,578.82
  6. Step 6: Final answer
    x = 77,626.82

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