Home / 54,342.81-81,456.68-18,284.94

Finding the Fourth Proportional to 54,342.81, 81,456.68 and 18,284.94

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Solution

The fourth proportional to 54,342.81, 81,456.68 and 18,284.94 is: 27,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,342.81 : 81,456.68 = 18,284.94 : x
  2. Step 2: Convert to fraction form
    54,342.81/81,456.68 = 18,284.94/x
  3. Step 3: Cross multiply
    54,342.81x = 81,456.68 × 18,284.94
  4. Step 4: Simplify right side
    54,342.81x = 1,489,430,414.97
  5. Step 5: Solve for x
    x = 1,489,430,414.97/54,342.81
  6. Step 6: Final answer
    x = 27,408.05

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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.