Home / 57,206-87,511

Finding the Third Proportional to 57,206 and 87,511

Calculator

Solution

The third proportional to 57,206 and 87,511 is: 133,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,206 : 87,511 = 87,511 : x
  2. Step 2: Convert to fraction form
    57,206/87,511 = 87,511/x
  3. Step 3: Cross multiply
    57,206x = 87,511 × 87,511
  4. Step 4: Simplify right side
    57,206x = 7,658,175,121
  5. Step 5: Solve for x
    x = 7,658,175,121/57,206
  6. Step 6: Final answer
    x = 133,870.14

Related Problems

Find third proportional to 28,603 and 43,755.50
Half scale
Find third proportional to 114,412 and 175,022
Double scale
Find third proportional to 57,208 and 87,514
Similar ratio
Find third proportional to 85,809 and 131,266.50
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.