Home / 54,635.20-81,967.38-19,578.40

Finding the Fourth Proportional to 54,635.20, 81,967.38 and 19,578.40

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Solution

The fourth proportional to 54,635.20, 81,967.38 and 19,578.40 is: 29,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,635.20 : 81,967.38 = 19,578.40 : x
  2. Step 2: Convert to fraction form
    54,635.20/81,967.38 = 19,578.40/x
  3. Step 3: Cross multiply
    54,635.20x = 81,967.38 × 19,578.40
  4. Step 4: Simplify right side
    54,635.20x = 1,604,790,187.38
  5. Step 5: Solve for x
    x = 1,604,790,187.38/54,635.20
  6. Step 6: Final answer
    x = 29,372.83

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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.