Home / 31,136-66,646

Finding the Third Proportional to 31,136 and 66,646

Calculator

Solution

The third proportional to 31,136 and 66,646 is: 142,654.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136 : 66,646 = 66,646 : x
  2. Step 2: Convert to fraction form
    31,136/66,646 = 66,646/x
  3. Step 3: Cross multiply
    31,136x = 66,646 × 66,646
  4. Step 4: Simplify right side
    31,136x = 4,441,689,316
  5. Step 5: Solve for x
    x = 4,441,689,316/31,136
  6. Step 6: Final answer
    x = 142,654.46

Related Problems

Find third proportional to 15,568 and 33,323
Half scale
Find third proportional to 62,272 and 133,292
Double scale
Find third proportional to 31,138 and 66,650
Similar ratio
Find third proportional to 46,704 and 99,969
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.