Home / 39,072-57,876

Finding the Third Proportional to 39,072 and 57,876

Calculator

Solution

The third proportional to 39,072 and 57,876 is: 85,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072 : 57,876 = 57,876 : x
  2. Step 2: Convert to fraction form
    39,072/57,876 = 57,876/x
  3. Step 3: Cross multiply
    39,072x = 57,876 × 57,876
  4. Step 4: Simplify right side
    39,072x = 3,349,631,376
  5. Step 5: Solve for x
    x = 3,349,631,376/39,072
  6. Step 6: Final answer
    x = 85,729.71

Related Problems

Find third proportional to 19,536 and 28,938
Half scale
Find third proportional to 78,144 and 115,752
Double scale
Find third proportional to 39,074 and 57,879
Similar ratio
Find third proportional to 58,608 and 86,814
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.