Home / 36,389-79,920

Finding the Third Proportional to 36,389 and 79,920

Calculator

Solution

The third proportional to 36,389 and 79,920 is: 175,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,389 : 79,920 = 79,920 : x
  2. Step 2: Convert to fraction form
    36,389/79,920 = 79,920/x
  3. Step 3: Cross multiply
    36,389x = 79,920 × 79,920
  4. Step 4: Simplify right side
    36,389x = 6,387,206,400
  5. Step 5: Solve for x
    x = 6,387,206,400/36,389
  6. Step 6: Final answer
    x = 175,525.75

Related Problems

Find third proportional to 18,194.50 and 39,960
Half scale
Find third proportional to 72,778 and 159,840
Double scale
Find third proportional to 36,391 and 79,924
Similar ratio
Find third proportional to 54,583.50 and 119,880
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.