Home / 51,988-78,450

Finding the Third Proportional to 51,988 and 78,450

Calculator

Solution

The third proportional to 51,988 and 78,450 is: 118,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988 : 78,450 = 78,450 : x
  2. Step 2: Convert to fraction form
    51,988/78,450 = 78,450/x
  3. Step 3: Cross multiply
    51,988x = 78,450 × 78,450
  4. Step 4: Simplify right side
    51,988x = 6,154,402,500
  5. Step 5: Solve for x
    x = 6,154,402,500/51,988
  6. Step 6: Final answer
    x = 118,381.21

Related Problems

Find third proportional to 25,994 and 39,225
Half scale
Find third proportional to 103,976 and 156,900
Double scale
Find third proportional to 51,990 and 78,453
Similar ratio
Find third proportional to 77,982 and 117,675
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.