Home / 30,658-65,690

Finding the Third Proportional to 30,658 and 65,690

Calculator

Solution

The third proportional to 30,658 and 65,690 is: 140,752.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,658 : 65,690 = 65,690 : x
  2. Step 2: Convert to fraction form
    30,658/65,690 = 65,690/x
  3. Step 3: Cross multiply
    30,658x = 65,690 × 65,690
  4. Step 4: Simplify right side
    30,658x = 4,315,176,100
  5. Step 5: Solve for x
    x = 4,315,176,100/30,658
  6. Step 6: Final answer
    x = 140,752.04

Related Problems

Find third proportional to 15,329 and 32,845
Half scale
Find third proportional to 61,316 and 131,380
Double scale
Find third proportional to 30,660 and 65,694
Similar ratio
Find third proportional to 45,987 and 98,535
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.