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Finding the Fourth Proportional to 85,215.28, 117,597.48 and 49,426.48

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Solution

The fourth proportional to 85,215.28, 117,597.48 and 49,426.48 is: 68,208.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,215.28 : 117,597.48 = 49,426.48 : x
  2. Step 2: Convert to fraction form
    85,215.28/117,597.48 = 49,426.48/x
  3. Step 3: Cross multiply
    85,215.28x = 117,597.48 × 49,426.48
  4. Step 4: Simplify right side
    85,215.28x = 5,812,429,493.27
  5. Step 5: Solve for x
    x = 5,812,429,493.27/85,215.28
  6. Step 6: Final answer
    x = 68,208.77

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