Home / 64,575-87,219

Finding the Third Proportional to 64,575 and 87,219

Calculator

Solution

The third proportional to 64,575 and 87,219 is: 117,803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575 : 87,219 = 87,219 : x
  2. Step 2: Convert to fraction form
    64,575/87,219 = 87,219/x
  3. Step 3: Cross multiply
    64,575x = 87,219 × 87,219
  4. Step 4: Simplify right side
    64,575x = 7,607,153,961
  5. Step 5: Solve for x
    x = 7,607,153,961/64,575
  6. Step 6: Final answer
    x = 117,803.39

Related Problems

Find third proportional to 32,287.50 and 43,609.50
Half scale
Find third proportional to 129,150 and 174,438
Double scale
Find third proportional to 64,577 and 87,222
Similar ratio
Find third proportional to 96,862.50 and 130,828.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.