Home / 30,456-66,609

Finding the Third Proportional to 30,456 and 66,609

Calculator

Solution

The third proportional to 30,456 and 66,609 is: 145,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456 : 66,609 = 66,609 : x
  2. Step 2: Convert to fraction form
    30,456/66,609 = 66,609/x
  3. Step 3: Cross multiply
    30,456x = 66,609 × 66,609
  4. Step 4: Simplify right side
    30,456x = 4,436,758,881
  5. Step 5: Solve for x
    x = 4,436,758,881/30,456
  6. Step 6: Final answer
    x = 145,677.66

Related Problems

Find third proportional to 15,228 and 33,304.50
Half scale
Find third proportional to 60,912 and 133,218
Double scale
Find third proportional to 30,458 and 66,613
Similar ratio
Find third proportional to 45,684 and 99,913.50
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.