Home / 42,707-68,615

Finding the Third Proportional to 42,707 and 68,615

Calculator

Solution

The third proportional to 42,707 and 68,615 is: 110,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,707 : 68,615 = 68,615 : x
  2. Step 2: Convert to fraction form
    42,707/68,615 = 68,615/x
  3. Step 3: Cross multiply
    42,707x = 68,615 × 68,615
  4. Step 4: Simplify right side
    42,707x = 4,708,018,225
  5. Step 5: Solve for x
    x = 4,708,018,225/42,707
  6. Step 6: Final answer
    x = 110,239.97

Related Problems

Find third proportional to 21,353.50 and 34,307.50
Half scale
Find third proportional to 85,414 and 137,230
Double scale
Find third proportional to 42,709 and 68,618
Similar ratio
Find third proportional to 64,060.50 and 102,922.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.