Home / 64,028-90,129

Finding the Third Proportional to 64,028 and 90,129

Calculator

Solution

The third proportional to 64,028 and 90,129 is: 126,870.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,028 : 90,129 = 90,129 : x
  2. Step 2: Convert to fraction form
    64,028/90,129 = 90,129/x
  3. Step 3: Cross multiply
    64,028x = 90,129 × 90,129
  4. Step 4: Simplify right side
    64,028x = 8,123,236,641
  5. Step 5: Solve for x
    x = 8,123,236,641/64,028
  6. Step 6: Final answer
    x = 126,870.07

Related Problems

Find third proportional to 32,014 and 45,064.50
Half scale
Find third proportional to 128,056 and 180,258
Double scale
Find third proportional to 64,030 and 90,132
Similar ratio
Find third proportional to 96,042 and 135,193.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.