Home / 54,617.80-81,912.12-33,688.30

Finding the Fourth Proportional to 54,617.80, 81,912.12 and 33,688.30

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Solution

The fourth proportional to 54,617.80, 81,912.12 and 33,688.30 is: 50,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,617.80 : 81,912.12 = 33,688.30 : x
  2. Step 2: Convert to fraction form
    54,617.80/81,912.12 = 33,688.30/x
  3. Step 3: Cross multiply
    54,617.80x = 81,912.12 × 33,688.30
  4. Step 4: Simplify right side
    54,617.80x = 2,759,480,072.20
  5. Step 5: Solve for x
    x = 2,759,480,072.20/54,617.80
  6. Step 6: Final answer
    x = 50,523.46

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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.