Home / 31,956-68,520

Finding the Third Proportional to 31,956 and 68,520

Calculator

Solution

The third proportional to 31,956 and 68,520 is: 146,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,956 : 68,520 = 68,520 : x
  2. Step 2: Convert to fraction form
    31,956/68,520 = 68,520/x
  3. Step 3: Cross multiply
    31,956x = 68,520 × 68,520
  4. Step 4: Simplify right side
    31,956x = 4,694,990,400
  5. Step 5: Solve for x
    x = 4,694,990,400/31,956
  6. Step 6: Final answer
    x = 146,920.47

Related Problems

Find third proportional to 15,978 and 34,260
Half scale
Find third proportional to 63,912 and 137,040
Double scale
Find third proportional to 31,958 and 68,524
Similar ratio
Find third proportional to 47,934 and 102,780
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.