Home / 40,806-77,919.75

Finding the Third Proportional to 40,806 and 77,919.75

Calculator

Solution

The third proportional to 40,806 and 77,919.75 is: 148,789.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,806 : 77,919.75 = 77,919.75 : x
  2. Step 2: Convert to fraction form
    40,806/77,919.75 = 77,919.75/x
  3. Step 3: Cross multiply
    40,806x = 77,919.75 × 77,919.75
  4. Step 4: Simplify right side
    40,806x = 6,071,487,440.06
  5. Step 5: Solve for x
    x = 6,071,487,440.06/40,806
  6. Step 6: Final answer
    x = 148,789.09

Related Problems

Find third proportional to 20,403 and 38,959.88
Half scale
Find third proportional to 81,612 and 155,839.50
Double scale
Find third proportional to 40,808 and 77,924
Similar ratio
Find third proportional to 61,209 and 116,879.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.