Home / 30,512-71,285

Finding the Third Proportional to 30,512 and 71,285

Calculator

Solution

The third proportional to 30,512 and 71,285 is: 166,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,512 : 71,285 = 71,285 : x
  2. Step 2: Convert to fraction form
    30,512/71,285 = 71,285/x
  3. Step 3: Cross multiply
    30,512x = 71,285 × 71,285
  4. Step 4: Simplify right side
    30,512x = 5,081,551,225
  5. Step 5: Solve for x
    x = 5,081,551,225/30,512
  6. Step 6: Final answer
    x = 166,542.71

Related Problems

Find third proportional to 15,256 and 35,642.50
Half scale
Find third proportional to 61,024 and 142,570
Double scale
Find third proportional to 30,514 and 71,290
Similar ratio
Find third proportional to 45,768 and 106,927.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.