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Finding the Fourth Proportional to 80,853.82, 121,288.93 and 30,975.64

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Solution

The fourth proportional to 80,853.82, 121,288.93 and 30,975.64 is: 46,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,853.82 : 121,288.93 = 30,975.64 : x
  2. Step 2: Convert to fraction form
    80,853.82/121,288.93 = 30,975.64/x
  3. Step 3: Cross multiply
    80,853.82x = 121,288.93 × 30,975.64
  4. Step 4: Simplify right side
    80,853.82x = 3,757,001,851.00
  5. Step 5: Solve for x
    x = 3,757,001,851.00/80,853.82
  6. Step 6: Final answer
    x = 46,466.60

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