Home / 56,427.28-84,614.39-20,864.03

Finding the Fourth Proportional to 56,427.28, 84,614.39 and 20,864.03

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Solution

The fourth proportional to 56,427.28, 84,614.39 and 20,864.03 is: 31,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,427.28 : 84,614.39 = 20,864.03 : x
  2. Step 2: Convert to fraction form
    56,427.28/84,614.39 = 20,864.03/x
  3. Step 3: Cross multiply
    56,427.28x = 84,614.39 × 20,864.03
  4. Step 4: Simplify right side
    56,427.28x = 1,765,396,722.24
  5. Step 5: Solve for x
    x = 1,765,396,722.24/56,427.28
  6. Step 6: Final answer
    x = 31,286.23

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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.