Home / 30,428-64,744

Finding the Third Proportional to 30,428 and 64,744

Calculator

Solution

The third proportional to 30,428 and 64,744 is: 137,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428 : 64,744 = 64,744 : x
  2. Step 2: Convert to fraction form
    30,428/64,744 = 64,744/x
  3. Step 3: Cross multiply
    30,428x = 64,744 × 64,744
  4. Step 4: Simplify right side
    30,428x = 4,191,785,536
  5. Step 5: Solve for x
    x = 4,191,785,536/30,428
  6. Step 6: Final answer
    x = 137,760.80

Related Problems

Find third proportional to 15,214 and 32,372
Half scale
Find third proportional to 60,856 and 129,488
Double scale
Find third proportional to 30,430 and 64,748
Similar ratio
Find third proportional to 45,642 and 97,116
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.