Home / 39,120-85,416

Finding the Third Proportional to 39,120 and 85,416

Calculator

Solution

The third proportional to 39,120 and 85,416 is: 186,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120 : 85,416 = 85,416 : x
  2. Step 2: Convert to fraction form
    39,120/85,416 = 85,416/x
  3. Step 3: Cross multiply
    39,120x = 85,416 × 85,416
  4. Step 4: Simplify right side
    39,120x = 7,295,893,056
  5. Step 5: Solve for x
    x = 7,295,893,056/39,120
  6. Step 6: Final answer
    x = 186,500.33

Related Problems

Find third proportional to 19,560 and 42,708
Half scale
Find third proportional to 78,240 and 170,832
Double scale
Find third proportional to 39,122 and 85,420
Similar ratio
Find third proportional to 58,680 and 128,124
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.