Home / 39,408-86,472

Finding the Third Proportional to 39,408 and 86,472

Calculator

Solution

The third proportional to 39,408 and 86,472 is: 189,743.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,408 : 86,472 = 86,472 : x
  2. Step 2: Convert to fraction form
    39,408/86,472 = 86,472/x
  3. Step 3: Cross multiply
    39,408x = 86,472 × 86,472
  4. Step 4: Simplify right side
    39,408x = 7,477,406,784
  5. Step 5: Solve for x
    x = 7,477,406,784/39,408
  6. Step 6: Final answer
    x = 189,743.37

Related Problems

Find third proportional to 19,704 and 43,236
Half scale
Find third proportional to 78,816 and 172,944
Double scale
Find third proportional to 39,410 and 86,476
Similar ratio
Find third proportional to 59,112 and 129,708
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.