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Finding the Fourth Proportional to 83,890.70, 115,771.91 and 48,087.48

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Solution

The fourth proportional to 83,890.70, 115,771.91 and 48,087.48 is: 66,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,890.70 : 115,771.91 = 48,087.48 : x
  2. Step 2: Convert to fraction form
    83,890.70/115,771.91 = 48,087.48/x
  3. Step 3: Cross multiply
    83,890.70x = 115,771.91 × 48,087.48
  4. Step 4: Simplify right side
    83,890.70x = 5,567,179,406.69
  5. Step 5: Solve for x
    x = 5,567,179,406.69/83,890.70
  6. Step 6: Final answer
    x = 66,362.30

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