Home / 30,812-65,080

Finding the Third Proportional to 30,812 and 65,080

Calculator

Solution

The third proportional to 30,812 and 65,080 is: 137,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812 : 65,080 = 65,080 : x
  2. Step 2: Convert to fraction form
    30,812/65,080 = 65,080/x
  3. Step 3: Cross multiply
    30,812x = 65,080 × 65,080
  4. Step 4: Simplify right side
    30,812x = 4,235,406,400
  5. Step 5: Solve for x
    x = 4,235,406,400/30,812
  6. Step 6: Final answer
    x = 137,459.64

Related Problems

Find third proportional to 15,406 and 32,540
Half scale
Find third proportional to 61,624 and 130,160
Double scale
Find third proportional to 30,814 and 65,084
Similar ratio
Find third proportional to 46,218 and 97,620
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.