Home / 39,920-66,536

Finding the Third Proportional to 39,920 and 66,536

Calculator

Solution

The third proportional to 39,920 and 66,536 is: 110,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920 : 66,536 = 66,536 : x
  2. Step 2: Convert to fraction form
    39,920/66,536 = 66,536/x
  3. Step 3: Cross multiply
    39,920x = 66,536 × 66,536
  4. Step 4: Simplify right side
    39,920x = 4,427,039,296
  5. Step 5: Solve for x
    x = 4,427,039,296/39,920
  6. Step 6: Final answer
    x = 110,897.78

Related Problems

Find third proportional to 19,960 and 33,268
Half scale
Find third proportional to 79,840 and 133,072
Double scale
Find third proportional to 39,922 and 66,539
Similar ratio
Find third proportional to 59,880 and 99,804
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.