Home / 81,318.84-112,198.68-50,716.20

Finding the Fourth Proportional to 81,318.84, 112,198.68 and 50,716.20

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Solution

The fourth proportional to 81,318.84, 112,198.68 and 50,716.20 is: 69,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,318.84 : 112,198.68 = 50,716.20 : x
  2. Step 2: Convert to fraction form
    81,318.84/112,198.68 = 50,716.20/x
  3. Step 3: Cross multiply
    81,318.84x = 112,198.68 × 50,716.20
  4. Step 4: Simplify right side
    81,318.84x = 5,690,290,694.62
  5. Step 5: Solve for x
    x = 5,690,290,694.62/81,318.84
  6. Step 6: Final answer
    x = 69,975.06

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1.5x scale

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.