Home / 30,802-66,521

Finding the Third Proportional to 30,802 and 66,521

Calculator

Solution

The third proportional to 30,802 and 66,521 is: 143,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802 : 66,521 = 66,521 : x
  2. Step 2: Convert to fraction form
    30,802/66,521 = 66,521/x
  3. Step 3: Cross multiply
    30,802x = 66,521 × 66,521
  4. Step 4: Simplify right side
    30,802x = 4,425,043,441
  5. Step 5: Solve for x
    x = 4,425,043,441/30,802
  6. Step 6: Final answer
    x = 143,660.91

Related Problems

Find third proportional to 15,401 and 33,260.50
Half scale
Find third proportional to 61,604 and 133,042
Double scale
Find third proportional to 30,804 and 66,525
Similar ratio
Find third proportional to 46,203 and 99,781.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.