Home / 54,736.20-82,104.30-19,679.40

Finding the Fourth Proportional to 54,736.20, 82,104.30 and 19,679.40

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Solution

The fourth proportional to 54,736.20, 82,104.30 and 19,679.40 is: 29,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,736.20 : 82,104.30 = 19,679.40 : x
  2. Step 2: Convert to fraction form
    54,736.20/82,104.30 = 19,679.40/x
  3. Step 3: Cross multiply
    54,736.20x = 82,104.30 × 19,679.40
  4. Step 4: Simplify right side
    54,736.20x = 1,615,763,361.42
  5. Step 5: Solve for x
    x = 1,615,763,361.42/54,736.20
  6. Step 6: Final answer
    x = 29,519.10

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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.