Home / 48,278-76,821

Finding the Third Proportional to 48,278 and 76,821

Calculator

Solution

The third proportional to 48,278 and 76,821 is: 122,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,278 : 76,821 = 76,821 : x
  2. Step 2: Convert to fraction form
    48,278/76,821 = 76,821/x
  3. Step 3: Cross multiply
    48,278x = 76,821 × 76,821
  4. Step 4: Simplify right side
    48,278x = 5,901,466,041
  5. Step 5: Solve for x
    x = 5,901,466,041/48,278
  6. Step 6: Final answer
    x = 122,239.24

Related Problems

Find third proportional to 24,139 and 38,410.50
Half scale
Find third proportional to 96,556 and 153,642
Double scale
Find third proportional to 48,280 and 76,824
Similar ratio
Find third proportional to 72,417 and 115,231.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.