Home / 30,288-64,893

Finding the Third Proportional to 30,288 and 64,893

Calculator

Solution

The third proportional to 30,288 and 64,893 is: 139,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288 : 64,893 = 64,893 : x
  2. Step 2: Convert to fraction form
    30,288/64,893 = 64,893/x
  3. Step 3: Cross multiply
    30,288x = 64,893 × 64,893
  4. Step 4: Simplify right side
    30,288x = 4,211,101,449
  5. Step 5: Solve for x
    x = 4,211,101,449/30,288
  6. Step 6: Final answer
    x = 139,035.31

Related Problems

Find third proportional to 15,144 and 32,446.50
Half scale
Find third proportional to 60,576 and 129,786
Double scale
Find third proportional to 30,290 and 64,897
Similar ratio
Find third proportional to 45,432 and 97,339.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.