Home / 51,087-79,287

Finding the Third Proportional to 51,087 and 79,287

Calculator

Solution

The third proportional to 51,087 and 79,287 is: 123,053.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,087 : 79,287 = 79,287 : x
  2. Step 2: Convert to fraction form
    51,087/79,287 = 79,287/x
  3. Step 3: Cross multiply
    51,087x = 79,287 × 79,287
  4. Step 4: Simplify right side
    51,087x = 6,286,428,369
  5. Step 5: Solve for x
    x = 6,286,428,369/51,087
  6. Step 6: Final answer
    x = 123,053.39

Related Problems

Find third proportional to 25,543.50 and 39,643.50
Half scale
Find third proportional to 102,174 and 158,574
Double scale
Find third proportional to 51,089 and 79,290
Similar ratio
Find third proportional to 76,630.50 and 118,930.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.