Home / 29,900-64,408

Finding the Third Proportional to 29,900 and 64,408

Calculator

Solution

The third proportional to 29,900 and 64,408 is: 138,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,900 : 64,408 = 64,408 : x
  2. Step 2: Convert to fraction form
    29,900/64,408 = 64,408/x
  3. Step 3: Cross multiply
    29,900x = 64,408 × 64,408
  4. Step 4: Simplify right side
    29,900x = 4,148,390,464
  5. Step 5: Solve for x
    x = 4,148,390,464/29,900
  6. Step 6: Final answer
    x = 138,742.16

Related Problems

Find third proportional to 14,950 and 32,204
Half scale
Find third proportional to 59,800 and 128,816
Double scale
Find third proportional to 29,902 and 64,412
Similar ratio
Find third proportional to 44,850 and 96,612
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.