Home / 68,019.90-102,029.72-18,100

Finding the Fourth Proportional to 68,019.90, 102,029.72 and 18,100

Calculator

Solution

The fourth proportional to 68,019.90, 102,029.72 and 18,100 is: 27,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.90 : 102,029.72 = 18,100 : x
  2. Step 2: Convert to fraction form
    68,019.90/102,029.72 = 18,100/x
  3. Step 3: Cross multiply
    68,019.90x = 102,029.72 × 18,100
  4. Step 4: Simplify right side
    68,019.90x = 1,846,737,932
  5. Step 5: Solve for x
    x = 1,846,737,932/68,019.90
  6. Step 6: Final answer
    x = 27,149.97

Related Problems

Find fourth proportional to 34,009.95, 51,014.86 and 9,050
Half scale
Find fourth proportional to 136,039.80, 204,059.44 and 36,200
Double scale
Find fourth proportional to 68,020.90, 102,031.22 and 18,101
Similar ratio
Find fourth proportional to 102,029.85, 153,044.58 and 27,150
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.