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Finding the Fourth Proportional to 53,698.40, 80,450.40 and 45,922.40

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Solution

The fourth proportional to 53,698.40, 80,450.40 and 45,922.40 is: 68,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,698.40 : 80,450.40 = 45,922.40 : x
  2. Step 2: Convert to fraction form
    53,698.40/80,450.40 = 45,922.40/x
  3. Step 3: Cross multiply
    53,698.40x = 80,450.40 × 45,922.40
  4. Step 4: Simplify right side
    53,698.40x = 3,694,475,448.96
  5. Step 5: Solve for x
    x = 3,694,475,448.96/53,698.40
  6. Step 6: Final answer
    x = 68,800.48

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