Home / 38,781-80,442

Finding the Third Proportional to 38,781 and 80,442

Calculator

Solution

The third proportional to 38,781 and 80,442 is: 166,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,781 : 80,442 = 80,442 : x
  2. Step 2: Convert to fraction form
    38,781/80,442 = 80,442/x
  3. Step 3: Cross multiply
    38,781x = 80,442 × 80,442
  4. Step 4: Simplify right side
    38,781x = 6,470,915,364
  5. Step 5: Solve for x
    x = 6,470,915,364/38,781
  6. Step 6: Final answer
    x = 166,857.88

Related Problems

Find third proportional to 19,390.50 and 40,221
Half scale
Find third proportional to 77,562 and 160,884
Double scale
Find third proportional to 38,783 and 80,446
Similar ratio
Find third proportional to 58,171.50 and 120,663
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.