Home / 54,786-78,291

Finding the Third Proportional to 54,786 and 78,291

Calculator

Solution

The third proportional to 54,786 and 78,291 is: 111,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,786 : 78,291 = 78,291 : x
  2. Step 2: Convert to fraction form
    54,786/78,291 = 78,291/x
  3. Step 3: Cross multiply
    54,786x = 78,291 × 78,291
  4. Step 4: Simplify right side
    54,786x = 6,129,480,681
  5. Step 5: Solve for x
    x = 6,129,480,681/54,786
  6. Step 6: Final answer
    x = 111,880.42

Related Problems

Find third proportional to 27,393 and 39,145.50
Half scale
Find third proportional to 109,572 and 156,582
Double scale
Find third proportional to 54,788 and 78,294
Similar ratio
Find third proportional to 82,179 and 117,436.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.