Home / 51,912-80,288

Finding the Third Proportional to 51,912 and 80,288

Calculator

Solution

The third proportional to 51,912 and 80,288 is: 124,174.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,912 : 80,288 = 80,288 : x
  2. Step 2: Convert to fraction form
    51,912/80,288 = 80,288/x
  3. Step 3: Cross multiply
    51,912x = 80,288 × 80,288
  4. Step 4: Simplify right side
    51,912x = 6,446,162,944
  5. Step 5: Solve for x
    x = 6,446,162,944/51,912
  6. Step 6: Final answer
    x = 124,174.81

Related Problems

Find third proportional to 25,956 and 40,144
Half scale
Find third proportional to 103,824 and 160,576
Double scale
Find third proportional to 51,914 and 80,291
Similar ratio
Find third proportional to 77,868 and 120,432
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.