Home / 54,211.28-81,296.68-18,662.64

Finding the Fourth Proportional to 54,211.28, 81,296.68 and 18,662.64

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Solution

The fourth proportional to 54,211.28, 81,296.68 and 18,662.64 is: 27,986.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,211.28 : 81,296.68 = 18,662.64 : x
  2. Step 2: Convert to fraction form
    54,211.28/81,296.68 = 18,662.64/x
  3. Step 3: Cross multiply
    54,211.28x = 81,296.68 × 18,662.64
  4. Step 4: Simplify right side
    54,211.28x = 1,517,210,672.04
  5. Step 5: Solve for x
    x = 1,517,210,672.04/54,211.28
  6. Step 6: Final answer
    x = 27,986.99

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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.