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Finding the Fourth Proportional to 85,991.39, 129,037.84 and 32,728.22

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Solution

The fourth proportional to 85,991.39, 129,037.84 and 32,728.22 is: 49,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.39 : 129,037.84 = 32,728.22 : x
  2. Step 2: Convert to fraction form
    85,991.39/129,037.84 = 32,728.22/x
  3. Step 3: Cross multiply
    85,991.39x = 129,037.84 × 32,728.22
  4. Step 4: Simplify right side
    85,991.39x = 4,223,178,815.84
  5. Step 5: Solve for x
    x = 4,223,178,815.84/85,991.39
  6. Step 6: Final answer
    x = 49,111.65

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