Home / 86,734.88-119,713.92-54,947.28

Finding the Fourth Proportional to 86,734.88, 119,713.92 and 54,947.28

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Solution

The fourth proportional to 86,734.88, 119,713.92 and 54,947.28 is: 75,839.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,734.88 : 119,713.92 = 54,947.28 : x
  2. Step 2: Convert to fraction form
    86,734.88/119,713.92 = 54,947.28/x
  3. Step 3: Cross multiply
    86,734.88x = 119,713.92 × 54,947.28
  4. Step 4: Simplify right side
    86,734.88x = 6,577,954,282.14
  5. Step 5: Solve for x
    x = 6,577,954,282.14/86,734.88
  6. Step 6: Final answer
    x = 75,839.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.