Home / 73,156.26-109,734.39-20,565.75

Finding the Fourth Proportional to 73,156.26, 109,734.39 and 20,565.75

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Solution

The fourth proportional to 73,156.26, 109,734.39 and 20,565.75 is: 30,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,156.26 : 109,734.39 = 20,565.75 : x
  2. Step 2: Convert to fraction form
    73,156.26/109,734.39 = 20,565.75/x
  3. Step 3: Cross multiply
    73,156.26x = 109,734.39 × 20,565.75
  4. Step 4: Simplify right side
    73,156.26x = 2,256,770,031.14
  5. Step 5: Solve for x
    x = 2,256,770,031.14/73,156.26
  6. Step 6: Final answer
    x = 30,848.63

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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.