Home / 65,286-87,507

Finding the Third Proportional to 65,286 and 87,507

Calculator

Solution

The third proportional to 65,286 and 87,507 is: 117,291.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,286 : 87,507 = 87,507 : x
  2. Step 2: Convert to fraction form
    65,286/87,507 = 87,507/x
  3. Step 3: Cross multiply
    65,286x = 87,507 × 87,507
  4. Step 4: Simplify right side
    65,286x = 7,657,475,049
  5. Step 5: Solve for x
    x = 7,657,475,049/65,286
  6. Step 6: Final answer
    x = 117,291.23

Related Problems

Find third proportional to 32,643 and 43,753.50
Half scale
Find third proportional to 130,572 and 175,014
Double scale
Find third proportional to 65,288 and 87,510
Similar ratio
Find third proportional to 97,929 and 131,260.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.