Home / 73,218.12-109,727.81-33,187.11

Finding the Fourth Proportional to 73,218.12, 109,727.81 and 33,187.11

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Solution

The fourth proportional to 73,218.12, 109,727.81 and 33,187.11 is: 49,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,218.12 : 109,727.81 = 33,187.11 : x
  2. Step 2: Convert to fraction form
    73,218.12/109,727.81 = 33,187.11/x
  3. Step 3: Cross multiply
    73,218.12x = 109,727.81 × 33,187.11
  4. Step 4: Simplify right side
    73,218.12x = 3,641,548,900.53
  5. Step 5: Solve for x
    x = 3,641,548,900.53/73,218.12
  6. Step 6: Final answer
    x = 49,735.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.