Home / 51,120-77,472

Finding the Third Proportional to 51,120 and 77,472

Calculator

Solution

The third proportional to 51,120 and 77,472 is: 117,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,120 : 77,472 = 77,472 : x
  2. Step 2: Convert to fraction form
    51,120/77,472 = 77,472/x
  3. Step 3: Cross multiply
    51,120x = 77,472 × 77,472
  4. Step 4: Simplify right side
    51,120x = 6,001,910,784
  5. Step 5: Solve for x
    x = 6,001,910,784/51,120
  6. Step 6: Final answer
    x = 117,408.27

Related Problems

Find third proportional to 25,560 and 38,736
Half scale
Find third proportional to 102,240 and 154,944
Double scale
Find third proportional to 51,122 and 77,475
Similar ratio
Find third proportional to 76,680 and 116,208
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.