Home / 31,491-66,536

Finding the Third Proportional to 31,491 and 66,536

Calculator

Solution

The third proportional to 31,491 and 66,536 is: 140,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491 : 66,536 = 66,536 : x
  2. Step 2: Convert to fraction form
    31,491/66,536 = 66,536/x
  3. Step 3: Cross multiply
    31,491x = 66,536 × 66,536
  4. Step 4: Simplify right side
    31,491x = 4,427,039,296
  5. Step 5: Solve for x
    x = 4,427,039,296/31,491
  6. Step 6: Final answer
    x = 140,581.10

Related Problems

Find third proportional to 15,745.50 and 33,268
Half scale
Find third proportional to 62,982 and 133,072
Double scale
Find third proportional to 31,493 and 66,540
Similar ratio
Find third proportional to 47,236.50 and 99,804
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.