Home / 83,434-115,138.92-49,900

Finding the Fourth Proportional to 83,434, 115,138.92 and 49,900

Calculator

Solution

The fourth proportional to 83,434, 115,138.92 and 49,900 is: 68,862

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,434 : 115,138.92 = 49,900 : x
  2. Step 2: Convert to fraction form
    83,434/115,138.92 = 49,900/x
  3. Step 3: Cross multiply
    83,434x = 115,138.92 × 49,900
  4. Step 4: Simplify right side
    83,434x = 5,745,432,108
  5. Step 5: Solve for x
    x = 5,745,432,108/83,434
  6. Step 6: Final answer
    x = 68,862

Related Problems

Find fourth proportional to 41,717, 57,569.46 and 24,950
Half scale
Find fourth proportional to 166,868, 230,277.84 and 99,800
Double scale
Find fourth proportional to 83,435, 115,140.30 and 49,901
Similar ratio
Find fourth proportional to 125,151, 172,708.38 and 74,850
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.