Home / 50,067.78-69,070.20-28,834.74

Finding the Fourth Proportional to 50,067.78, 69,070.20 and 28,834.74

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Solution

The fourth proportional to 50,067.78, 69,070.20 and 28,834.74 is: 39,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,067.78 : 69,070.20 = 28,834.74 : x
  2. Step 2: Convert to fraction form
    50,067.78/69,070.20 = 28,834.74/x
  3. Step 3: Cross multiply
    50,067.78x = 69,070.20 × 28,834.74
  4. Step 4: Simplify right side
    50,067.78x = 1,991,621,258.75
  5. Step 5: Solve for x
    x = 1,991,621,258.75/50,067.78
  6. Step 6: Final answer
    x = 39,778.50

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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.