Home / 57,808-86,320

Finding the Third Proportional to 57,808 and 86,320

Calculator

Solution

The third proportional to 57,808 and 86,320 is: 128,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,808 : 86,320 = 86,320 : x
  2. Step 2: Convert to fraction form
    57,808/86,320 = 86,320/x
  3. Step 3: Cross multiply
    57,808x = 86,320 × 86,320
  4. Step 4: Simplify right side
    57,808x = 7,451,142,400
  5. Step 5: Solve for x
    x = 7,451,142,400/57,808
  6. Step 6: Final answer
    x = 128,894.66

Related Problems

Find third proportional to 28,904 and 43,160
Half scale
Find third proportional to 115,616 and 172,640
Double scale
Find third proportional to 57,810 and 86,323
Similar ratio
Find third proportional to 86,712 and 129,480
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.