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Finding the Fourth Proportional to 85,993.22, 128,980.10 and 29,822.96

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Solution

The fourth proportional to 85,993.22, 128,980.10 and 29,822.96 is: 44,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,993.22 : 128,980.10 = 29,822.96 : x
  2. Step 2: Convert to fraction form
    85,993.22/128,980.10 = 29,822.96/x
  3. Step 3: Cross multiply
    85,993.22x = 128,980.10 × 29,822.96
  4. Step 4: Simplify right side
    85,993.22x = 3,846,568,363.10
  5. Step 5: Solve for x
    x = 3,846,568,363.10/85,993.22
  6. Step 6: Final answer
    x = 44,731.07

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