Home / 53,090-81,478

Finding the Third Proportional to 53,090 and 81,478

Calculator

Solution

The third proportional to 53,090 and 81,478 is: 125,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,090 : 81,478 = 81,478 : x
  2. Step 2: Convert to fraction form
    53,090/81,478 = 81,478/x
  3. Step 3: Cross multiply
    53,090x = 81,478 × 81,478
  4. Step 4: Simplify right side
    53,090x = 6,638,664,484
  5. Step 5: Solve for x
    x = 6,638,664,484/53,090
  6. Step 6: Final answer
    x = 125,045.48

Related Problems

Find third proportional to 26,545 and 40,739
Half scale
Find third proportional to 106,180 and 162,956
Double scale
Find third proportional to 53,092 and 81,481
Similar ratio
Find third proportional to 79,635 and 122,217
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.