Home / 30,009-69,474

Finding the Third Proportional to 30,009 and 69,474

Calculator

Solution

The third proportional to 30,009 and 69,474 is: 160,839.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009 : 69,474 = 69,474 : x
  2. Step 2: Convert to fraction form
    30,009/69,474 = 69,474/x
  3. Step 3: Cross multiply
    30,009x = 69,474 × 69,474
  4. Step 4: Simplify right side
    30,009x = 4,826,636,676
  5. Step 5: Solve for x
    x = 4,826,636,676/30,009
  6. Step 6: Final answer
    x = 160,839.64

Related Problems

Find third proportional to 15,004.50 and 34,737
Half scale
Find third proportional to 60,018 and 138,948
Double scale
Find third proportional to 30,011 and 69,479
Similar ratio
Find third proportional to 45,013.50 and 104,211
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.