Home / 56,358-87,220

Finding the Third Proportional to 56,358 and 87,220

Calculator

Solution

The third proportional to 56,358 and 87,220 is: 134,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358 : 87,220 = 87,220 : x
  2. Step 2: Convert to fraction form
    56,358/87,220 = 87,220/x
  3. Step 3: Cross multiply
    56,358x = 87,220 × 87,220
  4. Step 4: Simplify right side
    56,358x = 7,607,328,400
  5. Step 5: Solve for x
    x = 7,607,328,400/56,358
  6. Step 6: Final answer
    x = 134,982.23

Related Problems

Find third proportional to 28,179 and 43,610
Half scale
Find third proportional to 112,716 and 174,440
Double scale
Find third proportional to 56,360 and 87,223
Similar ratio
Find third proportional to 84,537 and 130,830
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.