Home / 54,201.24-81,308.64-18,653.40

Finding the Fourth Proportional to 54,201.24, 81,308.64 and 18,653.40

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Solution

The fourth proportional to 54,201.24, 81,308.64 and 18,653.40 is: 27,982.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,201.24 : 81,308.64 = 18,653.40 : x
  2. Step 2: Convert to fraction form
    54,201.24/81,308.64 = 18,653.40/x
  3. Step 3: Cross multiply
    54,201.24x = 81,308.64 × 18,653.40
  4. Step 4: Simplify right side
    54,201.24x = 1,516,682,585.38
  5. Step 5: Solve for x
    x = 1,516,682,585.38/54,201.24
  6. Step 6: Final answer
    x = 27,982.43

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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.