Home / 54,172.20-81,260.07-18,633.15

Finding the Fourth Proportional to 54,172.20, 81,260.07 and 18,633.15

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Solution

The fourth proportional to 54,172.20, 81,260.07 and 18,633.15 is: 27,950.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,172.20 : 81,260.07 = 18,633.15 : x
  2. Step 2: Convert to fraction form
    54,172.20/81,260.07 = 18,633.15/x
  3. Step 3: Cross multiply
    54,172.20x = 81,260.07 × 18,633.15
  4. Step 4: Simplify right side
    54,172.20x = 1,514,131,073.32
  5. Step 5: Solve for x
    x = 1,514,131,073.32/54,172.20
  6. Step 6: Final answer
    x = 27,950.33

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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.