Home / 58,728-128,712

Finding the Third Proportional to 58,728 and 128,712

Calculator

Solution

The third proportional to 58,728 and 128,712 is: 282,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,728 : 128,712 = 128,712 : x
  2. Step 2: Convert to fraction form
    58,728/128,712 = 128,712/x
  3. Step 3: Cross multiply
    58,728x = 128,712 × 128,712
  4. Step 4: Simplify right side
    58,728x = 16,566,778,944
  5. Step 5: Solve for x
    x = 16,566,778,944/58,728
  6. Step 6: Final answer
    x = 282,093.36

Related Problems

Find third proportional to 29,364 and 64,356
Half scale
Find third proportional to 117,456 and 257,424
Double scale
Find third proportional to 58,730 and 128,716
Similar ratio
Find third proportional to 88,092 and 193,068
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.