Home / 45,990-70,320

Finding the Third Proportional to 45,990 and 70,320

Calculator

Solution

The third proportional to 45,990 and 70,320 is: 107,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,990 : 70,320 = 70,320 : x
  2. Step 2: Convert to fraction form
    45,990/70,320 = 70,320/x
  3. Step 3: Cross multiply
    45,990x = 70,320 × 70,320
  4. Step 4: Simplify right side
    45,990x = 4,944,902,400
  5. Step 5: Solve for x
    x = 4,944,902,400/45,990
  6. Step 6: Final answer
    x = 107,521.25

Related Problems

Find third proportional to 22,995 and 35,160
Half scale
Find third proportional to 91,980 and 140,640
Double scale
Find third proportional to 45,992 and 70,323
Similar ratio
Find third proportional to 68,985 and 105,480
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.