Home / 61,438-90,141

Finding the Third Proportional to 61,438 and 90,141

Calculator

Solution

The third proportional to 61,438 and 90,141 is: 132,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,438 : 90,141 = 90,141 : x
  2. Step 2: Convert to fraction form
    61,438/90,141 = 90,141/x
  3. Step 3: Cross multiply
    61,438x = 90,141 × 90,141
  4. Step 4: Simplify right side
    61,438x = 8,125,399,881
  5. Step 5: Solve for x
    x = 8,125,399,881/61,438
  6. Step 6: Final answer
    x = 132,253.65

Related Problems

Find third proportional to 30,719 and 45,070.50
Half scale
Find third proportional to 122,876 and 180,282
Double scale
Find third proportional to 61,440 and 90,144
Similar ratio
Find third proportional to 92,157 and 135,211.50
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.