Home / 30,900-67,497

Finding the Third Proportional to 30,900 and 67,497

Calculator

Solution

The third proportional to 30,900 and 67,497 is: 147,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,900 : 67,497 = 67,497 : x
  2. Step 2: Convert to fraction form
    30,900/67,497 = 67,497/x
  3. Step 3: Cross multiply
    30,900x = 67,497 × 67,497
  4. Step 4: Simplify right side
    30,900x = 4,555,845,009
  5. Step 5: Solve for x
    x = 4,555,845,009/30,900
  6. Step 6: Final answer
    x = 147,438.35

Related Problems

Find third proportional to 15,450 and 33,748.50
Half scale
Find third proportional to 61,800 and 134,994
Double scale
Find third proportional to 30,902 and 67,501
Similar ratio
Find third proportional to 46,350 and 101,245.50
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.