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Finding the Fourth Proportional to 87,328.15, 131,083.84 and 77,396.44

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Solution

The fourth proportional to 87,328.15, 131,083.84 and 77,396.44 is: 116,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,328.15 : 131,083.84 = 77,396.44 : x
  2. Step 2: Convert to fraction form
    87,328.15/131,083.84 = 77,396.44/x
  3. Step 3: Cross multiply
    87,328.15x = 131,083.84 × 77,396.44
  4. Step 4: Simplify right side
    87,328.15x = 10,145,422,170.55
  5. Step 5: Solve for x
    x = 10,145,422,170.55/87,328.15
  6. Step 6: Final answer
    x = 116,175.85

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