Home / 30,856-67,000

Finding the Third Proportional to 30,856 and 67,000

Calculator

Solution

The third proportional to 30,856 and 67,000 is: 145,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856 : 67,000 = 67,000 : x
  2. Step 2: Convert to fraction form
    30,856/67,000 = 67,000/x
  3. Step 3: Cross multiply
    30,856x = 67,000 × 67,000
  4. Step 4: Simplify right side
    30,856x = 4,489,000,000
  5. Step 5: Solve for x
    x = 4,489,000,000/30,856
  6. Step 6: Final answer
    x = 145,482.24

Related Problems

Find third proportional to 15,428 and 33,500
Half scale
Find third proportional to 61,712 and 134,000
Double scale
Find third proportional to 30,858 and 67,004
Similar ratio
Find third proportional to 46,284 and 100,500
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.