Home / 54,080.26-81,120.39-19,011.76

Finding the Fourth Proportional to 54,080.26, 81,120.39 and 19,011.76

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Solution

The fourth proportional to 54,080.26, 81,120.39 and 19,011.76 is: 28,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,080.26 : 81,120.39 = 19,011.76 : x
  2. Step 2: Convert to fraction form
    54,080.26/81,120.39 = 19,011.76/x
  3. Step 3: Cross multiply
    54,080.26x = 81,120.39 × 19,011.76
  4. Step 4: Simplify right side
    54,080.26x = 1,542,241,385.79
  5. Step 5: Solve for x
    x = 1,542,241,385.79/54,080.26
  6. Step 6: Final answer
    x = 28,517.64

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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.