Home / 39,874-85,470

Finding the Third Proportional to 39,874 and 85,470

Calculator

Solution

The third proportional to 39,874 and 85,470 is: 183,205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874 : 85,470 = 85,470 : x
  2. Step 2: Convert to fraction form
    39,874/85,470 = 85,470/x
  3. Step 3: Cross multiply
    39,874x = 85,470 × 85,470
  4. Step 4: Simplify right side
    39,874x = 7,305,120,900
  5. Step 5: Solve for x
    x = 7,305,120,900/39,874
  6. Step 6: Final answer
    x = 183,205.12

Related Problems

Find third proportional to 19,937 and 42,735
Half scale
Find third proportional to 79,748 and 170,940
Double scale
Find third proportional to 39,876 and 85,474
Similar ratio
Find third proportional to 59,811 and 128,205
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.