Home / 30,874-66,426

Finding the Third Proportional to 30,874 and 66,426

Calculator

Solution

The third proportional to 30,874 and 66,426 is: 142,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,874 : 66,426 = 66,426 : x
  2. Step 2: Convert to fraction form
    30,874/66,426 = 66,426/x
  3. Step 3: Cross multiply
    30,874x = 66,426 × 66,426
  4. Step 4: Simplify right side
    30,874x = 4,412,413,476
  5. Step 5: Solve for x
    x = 4,412,413,476/30,874
  6. Step 6: Final answer
    x = 142,916.81

Related Problems

Find third proportional to 15,437 and 33,213
Half scale
Find third proportional to 61,748 and 132,852
Double scale
Find third proportional to 30,876 and 66,430
Similar ratio
Find third proportional to 46,311 and 99,639
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.