Home / 42,874-66,765

Finding the Third Proportional to 42,874 and 66,765

Calculator

Solution

The third proportional to 42,874 and 66,765 is: 103,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,874 : 66,765 = 66,765 : x
  2. Step 2: Convert to fraction form
    42,874/66,765 = 66,765/x
  3. Step 3: Cross multiply
    42,874x = 66,765 × 66,765
  4. Step 4: Simplify right side
    42,874x = 4,457,565,225
  5. Step 5: Solve for x
    x = 4,457,565,225/42,874
  6. Step 6: Final answer
    x = 103,968.96

Related Problems

Find third proportional to 21,437 and 33,382.50
Half scale
Find third proportional to 85,748 and 133,530
Double scale
Find third proportional to 42,876 and 66,768
Similar ratio
Find third proportional to 64,311 and 100,147.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.