Home / 57,420-86,184

Finding the Third Proportional to 57,420 and 86,184

Calculator

Solution

The third proportional to 57,420 and 86,184 is: 129,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420 : 86,184 = 86,184 : x
  2. Step 2: Convert to fraction form
    57,420/86,184 = 86,184/x
  3. Step 3: Cross multiply
    57,420x = 86,184 × 86,184
  4. Step 4: Simplify right side
    57,420x = 7,427,681,856
  5. Step 5: Solve for x
    x = 7,427,681,856/57,420
  6. Step 6: Final answer
    x = 129,357.05

Related Problems

Find third proportional to 28,710 and 43,092
Half scale
Find third proportional to 114,840 and 172,368
Double scale
Find third proportional to 57,422 and 86,187
Similar ratio
Find third proportional to 86,130 and 129,276
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.