Home / 42.61-67.92

Finding the Third Proportional to 42.61 and 67.92

Calculator

Solution

The third proportional to 42.61 and 67.92 is: 108.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.61 : 67.92 = 67.92 : x
  2. Step 2: Convert to fraction form
    42.61/67.92 = 67.92/x
  3. Step 3: Cross multiply
    42.61x = 67.92 × 67.92
  4. Step 4: Simplify right side
    42.61x = 4,613.38
  5. Step 5: Solve for x
    x = 4,613.38/42.61
  6. Step 6: Final answer
    x = 108.27

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.