Home / 54,314.20-81,479.40-19,251.10

Finding the Fourth Proportional to 54,314.20, 81,479.40 and 19,251.10

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Solution

The fourth proportional to 54,314.20, 81,479.40 and 19,251.10 is: 28,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,314.20 : 81,479.40 = 19,251.10 : x
  2. Step 2: Convert to fraction form
    54,314.20/81,479.40 = 19,251.10/x
  3. Step 3: Cross multiply
    54,314.20x = 81,479.40 × 19,251.10
  4. Step 4: Simplify right side
    54,314.20x = 1,568,568,077.34
  5. Step 5: Solve for x
    x = 1,568,568,077.34/54,314.20
  6. Step 6: Final answer
    x = 28,879.52

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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.