Home / 61,982-90,369

Finding the Third Proportional to 61,982 and 90,369

Calculator

Solution

The third proportional to 61,982 and 90,369 is: 131,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,982 : 90,369 = 90,369 : x
  2. Step 2: Convert to fraction form
    61,982/90,369 = 90,369/x
  3. Step 3: Cross multiply
    61,982x = 90,369 × 90,369
  4. Step 4: Simplify right side
    61,982x = 8,166,556,161
  5. Step 5: Solve for x
    x = 8,166,556,161/61,982
  6. Step 6: Final answer
    x = 131,756.90

Related Problems

Find third proportional to 30,991 and 45,184.50
Half scale
Find third proportional to 123,964 and 180,738
Double scale
Find third proportional to 61,984 and 90,372
Similar ratio
Find third proportional to 92,973 and 135,553.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.