Home / 61,382-90,129

Finding the Third Proportional to 61,382 and 90,129

Calculator

Solution

The third proportional to 61,382 and 90,129 is: 132,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,382 : 90,129 = 90,129 : x
  2. Step 2: Convert to fraction form
    61,382/90,129 = 90,129/x
  3. Step 3: Cross multiply
    61,382x = 90,129 × 90,129
  4. Step 4: Simplify right side
    61,382x = 8,123,236,641
  5. Step 5: Solve for x
    x = 8,123,236,641/61,382
  6. Step 6: Final answer
    x = 132,339.07

Related Problems

Find third proportional to 30,691 and 45,064.50
Half scale
Find third proportional to 122,764 and 180,258
Double scale
Find third proportional to 61,384 and 90,132
Similar ratio
Find third proportional to 92,073 and 135,193.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.