Home / 61,971-91,620

Finding the Third Proportional to 61,971 and 91,620

Calculator

Solution

The third proportional to 61,971 and 91,620 is: 135,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,971 : 91,620 = 91,620 : x
  2. Step 2: Convert to fraction form
    61,971/91,620 = 91,620/x
  3. Step 3: Cross multiply
    61,971x = 91,620 × 91,620
  4. Step 4: Simplify right side
    61,971x = 8,394,224,400
  5. Step 5: Solve for x
    x = 8,394,224,400/61,971
  6. Step 6: Final answer
    x = 135,454.07

Related Problems

Find third proportional to 30,985.50 and 45,810
Half scale
Find third proportional to 123,942 and 183,240
Double scale
Find third proportional to 61,973 and 91,623
Similar ratio
Find third proportional to 92,956.50 and 137,430
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.