Home / 51,776-79,170

Finding the Third Proportional to 51,776 and 79,170

Calculator

Solution

The third proportional to 51,776 and 79,170 is: 121,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,776 : 79,170 = 79,170 : x
  2. Step 2: Convert to fraction form
    51,776/79,170 = 79,170/x
  3. Step 3: Cross multiply
    51,776x = 79,170 × 79,170
  4. Step 4: Simplify right side
    51,776x = 6,267,888,900
  5. Step 5: Solve for x
    x = 6,267,888,900/51,776
  6. Step 6: Final answer
    x = 121,057.80

Related Problems

Find third proportional to 25,888 and 39,585
Half scale
Find third proportional to 103,552 and 158,340
Double scale
Find third proportional to 51,778 and 79,173
Similar ratio
Find third proportional to 77,664 and 118,755
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.