Home / 43,863-66,189

Finding the Third Proportional to 43,863 and 66,189

Calculator

Solution

The third proportional to 43,863 and 66,189 is: 99,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,863 : 66,189 = 66,189 : x
  2. Step 2: Convert to fraction form
    43,863/66,189 = 66,189/x
  3. Step 3: Cross multiply
    43,863x = 66,189 × 66,189
  4. Step 4: Simplify right side
    43,863x = 4,380,983,721
  5. Step 5: Solve for x
    x = 4,380,983,721/43,863
  6. Step 6: Final answer
    x = 99,878.80

Related Problems

Find third proportional to 21,931.50 and 33,094.50
Half scale
Find third proportional to 87,726 and 132,378
Double scale
Find third proportional to 43,865 and 66,192
Similar ratio
Find third proportional to 65,794.50 and 99,283.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.