Home / 40,419-82,782

Finding the Third Proportional to 40,419 and 82,782

Calculator

Solution

The third proportional to 40,419 and 82,782 is: 169,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,419 : 82,782 = 82,782 : x
  2. Step 2: Convert to fraction form
    40,419/82,782 = 82,782/x
  3. Step 3: Cross multiply
    40,419x = 82,782 × 82,782
  4. Step 4: Simplify right side
    40,419x = 6,852,859,524
  5. Step 5: Solve for x
    x = 6,852,859,524/40,419
  6. Step 6: Final answer
    x = 169,545.50

Related Problems

Find third proportional to 20,209.50 and 41,391
Half scale
Find third proportional to 80,838 and 165,564
Double scale
Find third proportional to 40,421 and 82,786
Similar ratio
Find third proportional to 60,628.50 and 124,173
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.