Home / 57,110-81,172

Finding the Third Proportional to 57,110 and 81,172

Calculator

Solution

The third proportional to 57,110 and 81,172 is: 115,371.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,110 : 81,172 = 81,172 : x
  2. Step 2: Convert to fraction form
    57,110/81,172 = 81,172/x
  3. Step 3: Cross multiply
    57,110x = 81,172 × 81,172
  4. Step 4: Simplify right side
    57,110x = 6,588,893,584
  5. Step 5: Solve for x
    x = 6,588,893,584/57,110
  6. Step 6: Final answer
    x = 115,371.98

Related Problems

Find third proportional to 28,555 and 40,586
Half scale
Find third proportional to 114,220 and 162,344
Double scale
Find third proportional to 57,112 and 81,175
Similar ratio
Find third proportional to 85,665 and 121,758
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.