Home / 50,322.27-75,418.25-20,705.79

Finding the Fourth Proportional to 50,322.27, 75,418.25 and 20,705.79

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Solution

The fourth proportional to 50,322.27, 75,418.25 and 20,705.79 is: 31,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,322.27 : 75,418.25 = 20,705.79 : x
  2. Step 2: Convert to fraction form
    50,322.27/75,418.25 = 20,705.79/x
  3. Step 3: Cross multiply
    50,322.27x = 75,418.25 × 20,705.79
  4. Step 4: Simplify right side
    50,322.27x = 1,561,594,343.14
  5. Step 5: Solve for x
    x = 1,561,594,343.14/50,322.27
  6. Step 6: Final answer
    x = 31,031.87

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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.