Home / 39,674-87,428

Finding the Third Proportional to 39,674 and 87,428

Calculator

Solution

The third proportional to 39,674 and 87,428 is: 192,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,674 : 87,428 = 87,428 : x
  2. Step 2: Convert to fraction form
    39,674/87,428 = 87,428/x
  3. Step 3: Cross multiply
    39,674x = 87,428 × 87,428
  4. Step 4: Simplify right side
    39,674x = 7,643,655,184
  5. Step 5: Solve for x
    x = 7,643,655,184/39,674
  6. Step 6: Final answer
    x = 192,661.57

Related Problems

Find third proportional to 19,837 and 43,714
Half scale
Find third proportional to 79,348 and 174,856
Double scale
Find third proportional to 39,676 and 87,432
Similar ratio
Find third proportional to 59,511 and 131,142
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.