Home / 61,979-81,851

Finding the Third Proportional to 61,979 and 81,851

Calculator

Solution

The third proportional to 61,979 and 81,851 is: 108,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,979 : 81,851 = 81,851 : x
  2. Step 2: Convert to fraction form
    61,979/81,851 = 81,851/x
  3. Step 3: Cross multiply
    61,979x = 81,851 × 81,851
  4. Step 4: Simplify right side
    61,979x = 6,699,586,201
  5. Step 5: Solve for x
    x = 6,699,586,201/61,979
  6. Step 6: Final answer
    x = 108,094.45

Related Problems

Find third proportional to 30,989.50 and 40,925.50
Half scale
Find third proportional to 123,958 and 163,702
Double scale
Find third proportional to 61,981 and 81,854
Similar ratio
Find third proportional to 92,968.50 and 122,776.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.