Home / 21,159-50,129

Finding the Third Proportional to 21,159 and 50,129

Calculator

Solution

The third proportional to 21,159 and 50,129 is: 118,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159 : 50,129 = 50,129 : x
  2. Step 2: Convert to fraction form
    21,159/50,129 = 50,129/x
  3. Step 3: Cross multiply
    21,159x = 50,129 × 50,129
  4. Step 4: Simplify right side
    21,159x = 2,512,916,641
  5. Step 5: Solve for x
    x = 2,512,916,641/21,159
  6. Step 6: Final answer
    x = 118,763.49

Related Problems

Find third proportional to 10,579.50 and 25,064.50
Half scale
Find third proportional to 42,318 and 100,258
Double scale
Find third proportional to 21,161 and 50,134
Similar ratio
Find third proportional to 31,738.50 and 75,193.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.