Home / 31,191-66,751.50

Finding the Third Proportional to 31,191 and 66,751.50

Calculator

Solution

The third proportional to 31,191 and 66,751.50 is: 142,854.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191 : 66,751.50 = 66,751.50 : x
  2. Step 2: Convert to fraction form
    31,191/66,751.50 = 66,751.50/x
  3. Step 3: Cross multiply
    31,191x = 66,751.50 × 66,751.50
  4. Step 4: Simplify right side
    31,191x = 4,455,762,752.25
  5. Step 5: Solve for x
    x = 4,455,762,752.25/31,191
  6. Step 6: Final answer
    x = 142,854.12

Related Problems

Find third proportional to 15,595.50 and 33,375.75
Half scale
Find third proportional to 62,382 and 133,503
Double scale
Find third proportional to 31,193 and 66,756
Similar ratio
Find third proportional to 46,786.50 and 100,127.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.