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Finding the Fourth Proportional to 54,405.40, 81,608.10 and 46,629.40

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Solution

The fourth proportional to 54,405.40, 81,608.10 and 46,629.40 is: 69,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,405.40 : 81,608.10 = 46,629.40 : x
  2. Step 2: Convert to fraction form
    54,405.40/81,608.10 = 46,629.40/x
  3. Step 3: Cross multiply
    54,405.40x = 81,608.10 × 46,629.40
  4. Step 4: Simplify right side
    54,405.40x = 3,805,336,738.14
  5. Step 5: Solve for x
    x = 3,805,336,738.14/54,405.40
  6. Step 6: Final answer
    x = 69,944.10

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