Home / 38,781-85,419

Finding the Third Proportional to 38,781 and 85,419

Calculator

Solution

The third proportional to 38,781 and 85,419 is: 188,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,781 : 85,419 = 85,419 : x
  2. Step 2: Convert to fraction form
    38,781/85,419 = 85,419/x
  3. Step 3: Cross multiply
    38,781x = 85,419 × 85,419
  4. Step 4: Simplify right side
    38,781x = 7,296,405,561
  5. Step 5: Solve for x
    x = 7,296,405,561/38,781
  6. Step 6: Final answer
    x = 188,143.82

Related Problems

Find third proportional to 19,390.50 and 42,709.50
Half scale
Find third proportional to 77,562 and 170,838
Double scale
Find third proportional to 38,783 and 85,423
Similar ratio
Find third proportional to 58,171.50 and 128,128.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.