Home / 39,488-87,280

Finding the Third Proportional to 39,488 and 87,280

Calculator

Solution

The third proportional to 39,488 and 87,280 is: 192,914.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,488 : 87,280 = 87,280 : x
  2. Step 2: Convert to fraction form
    39,488/87,280 = 87,280/x
  3. Step 3: Cross multiply
    39,488x = 87,280 × 87,280
  4. Step 4: Simplify right side
    39,488x = 7,617,798,400
  5. Step 5: Solve for x
    x = 7,617,798,400/39,488
  6. Step 6: Final answer
    x = 192,914.26

Related Problems

Find third proportional to 19,744 and 43,640
Half scale
Find third proportional to 78,976 and 174,560
Double scale
Find third proportional to 39,490 and 87,284
Similar ratio
Find third proportional to 59,232 and 130,920
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.