Home / 54,183.36-81,284.64-19,143.36

Finding the Fourth Proportional to 54,183.36, 81,284.64 and 19,143.36

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Solution

The fourth proportional to 54,183.36, 81,284.64 and 19,143.36 is: 28,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,183.36 : 81,284.64 = 19,143.36 : x
  2. Step 2: Convert to fraction form
    54,183.36/81,284.64 = 19,143.36/x
  3. Step 3: Cross multiply
    54,183.36x = 81,284.64 × 19,143.36
  4. Step 4: Simplify right side
    54,183.36x = 1,556,061,125.99
  5. Step 5: Solve for x
    x = 1,556,061,125.99/54,183.36
  6. Step 6: Final answer
    x = 28,718.43

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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.