Home / 87,965.70-131,947.79-31,784.55

Finding the Fourth Proportional to 87,965.70, 131,947.79 and 31,784.55

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Solution

The fourth proportional to 87,965.70, 131,947.79 and 31,784.55 is: 47,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,965.70 : 131,947.79 = 31,784.55 : x
  2. Step 2: Convert to fraction form
    87,965.70/131,947.79 = 31,784.55/x
  3. Step 3: Cross multiply
    87,965.70x = 131,947.79 × 31,784.55
  4. Step 4: Simplify right side
    87,965.70x = 4,193,901,217.12
  5. Step 5: Solve for x
    x = 4,193,901,217.12/87,965.70
  6. Step 6: Final answer
    x = 47,676.55

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