Home / 42,738-66,347

Finding the Third Proportional to 42,738 and 66,347

Calculator

Solution

The third proportional to 42,738 and 66,347 is: 102,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,738 : 66,347 = 66,347 : x
  2. Step 2: Convert to fraction form
    42,738/66,347 = 66,347/x
  3. Step 3: Cross multiply
    42,738x = 66,347 × 66,347
  4. Step 4: Simplify right side
    42,738x = 4,401,924,409
  5. Step 5: Solve for x
    x = 4,401,924,409/42,738
  6. Step 6: Final answer
    x = 102,997.90

Related Problems

Find third proportional to 21,369 and 33,173.50
Half scale
Find third proportional to 85,476 and 132,694
Double scale
Find third proportional to 42,740 and 66,350
Similar ratio
Find third proportional to 64,107 and 99,520.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.