Home / 43,072-65,840

Finding the Third Proportional to 43,072 and 65,840

Calculator

Solution

The third proportional to 43,072 and 65,840 is: 100,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,072 : 65,840 = 65,840 : x
  2. Step 2: Convert to fraction form
    43,072/65,840 = 65,840/x
  3. Step 3: Cross multiply
    43,072x = 65,840 × 65,840
  4. Step 4: Simplify right side
    43,072x = 4,334,905,600
  5. Step 5: Solve for x
    x = 4,334,905,600/43,072
  6. Step 6: Final answer
    x = 100,643.24

Related Problems

Find third proportional to 21,536 and 32,920
Half scale
Find third proportional to 86,144 and 131,680
Double scale
Find third proportional to 43,074 and 65,843
Similar ratio
Find third proportional to 64,608 and 98,760
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.