Home / 39,738-55,698

Finding the Third Proportional to 39,738 and 55,698

Calculator

Solution

The third proportional to 39,738 and 55,698 is: 78,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,738 : 55,698 = 55,698 : x
  2. Step 2: Convert to fraction form
    39,738/55,698 = 55,698/x
  3. Step 3: Cross multiply
    39,738x = 55,698 × 55,698
  4. Step 4: Simplify right side
    39,738x = 3,102,267,204
  5. Step 5: Solve for x
    x = 3,102,267,204/39,738
  6. Step 6: Final answer
    x = 78,068.03

Related Problems

Find third proportional to 19,869 and 27,849
Half scale
Find third proportional to 79,476 and 111,396
Double scale
Find third proportional to 39,740 and 55,701
Similar ratio
Find third proportional to 59,607 and 83,547
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.