Home / 56,272-87,480

Finding the Third Proportional to 56,272 and 87,480

Calculator

Solution

The third proportional to 56,272 and 87,480 is: 135,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,272 : 87,480 = 87,480 : x
  2. Step 2: Convert to fraction form
    56,272/87,480 = 87,480/x
  3. Step 3: Cross multiply
    56,272x = 87,480 × 87,480
  4. Step 4: Simplify right side
    56,272x = 7,652,750,400
  5. Step 5: Solve for x
    x = 7,652,750,400/56,272
  6. Step 6: Final answer
    x = 135,995.71

Related Problems

Find third proportional to 28,136 and 43,740
Half scale
Find third proportional to 112,544 and 174,960
Double scale
Find third proportional to 56,274 and 87,483
Similar ratio
Find third proportional to 84,408 and 131,220
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.