Home / 40,131-53,688

Finding the Third Proportional to 40,131 and 53,688

Calculator

Solution

The third proportional to 40,131 and 53,688 is: 71,824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,131 : 53,688 = 53,688 : x
  2. Step 2: Convert to fraction form
    40,131/53,688 = 53,688/x
  3. Step 3: Cross multiply
    40,131x = 53,688 × 53,688
  4. Step 4: Simplify right side
    40,131x = 2,882,401,344
  5. Step 5: Solve for x
    x = 2,882,401,344/40,131
  6. Step 6: Final answer
    x = 71,824.81

Related Problems

Find third proportional to 20,065.50 and 26,844
Half scale
Find third proportional to 80,262 and 107,376
Double scale
Find third proportional to 40,133 and 53,691
Similar ratio
Find third proportional to 60,196.50 and 80,532
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.