Home / 67,488.26-101,249.13-20,103.15

Finding the Fourth Proportional to 67,488.26, 101,249.13 and 20,103.15

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Solution

The fourth proportional to 67,488.26, 101,249.13 and 20,103.15 is: 30,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,488.26 : 101,249.13 = 20,103.15 : x
  2. Step 2: Convert to fraction form
    67,488.26/101,249.13 = 20,103.15/x
  3. Step 3: Cross multiply
    67,488.26x = 101,249.13 × 20,103.15
  4. Step 4: Simplify right side
    67,488.26x = 2,035,426,447.76
  5. Step 5: Solve for x
    x = 2,035,426,447.76/67,488.26
  6. Step 6: Final answer
    x = 30,159.71

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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.