Home / 39,786-85,028

Finding the Third Proportional to 39,786 and 85,028

Calculator

Solution

The third proportional to 39,786 and 85,028 is: 181,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786 : 85,028 = 85,028 : x
  2. Step 2: Convert to fraction form
    39,786/85,028 = 85,028/x
  3. Step 3: Cross multiply
    39,786x = 85,028 × 85,028
  4. Step 4: Simplify right side
    39,786x = 7,229,760,784
  5. Step 5: Solve for x
    x = 7,229,760,784/39,786
  6. Step 6: Final answer
    x = 181,716.20

Related Problems

Find third proportional to 19,893 and 42,514
Half scale
Find third proportional to 79,572 and 170,056
Double scale
Find third proportional to 39,788 and 85,032
Similar ratio
Find third proportional to 59,679 and 127,542
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.