Home / 39,810-51,664

Finding the Third Proportional to 39,810 and 51,664

Calculator

Solution

The third proportional to 39,810 and 51,664 is: 67,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810 : 51,664 = 51,664 : x
  2. Step 2: Convert to fraction form
    39,810/51,664 = 51,664/x
  3. Step 3: Cross multiply
    39,810x = 51,664 × 51,664
  4. Step 4: Simplify right side
    39,810x = 2,669,168,896
  5. Step 5: Solve for x
    x = 2,669,168,896/39,810
  6. Step 6: Final answer
    x = 67,047.70

Related Problems

Find third proportional to 19,905 and 25,832
Half scale
Find third proportional to 79,620 and 103,328
Double scale
Find third proportional to 39,812 and 51,667
Similar ratio
Find third proportional to 59,715 and 77,496
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.