Home / 50,138.40-69,198.36-28,913.52

Finding the Fourth Proportional to 50,138.40, 69,198.36 and 28,913.52

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Solution

The fourth proportional to 50,138.40, 69,198.36 and 28,913.52 is: 39,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,138.40 : 69,198.36 = 28,913.52 : x
  2. Step 2: Convert to fraction form
    50,138.40/69,198.36 = 28,913.52/x
  3. Step 3: Cross multiply
    50,138.40x = 69,198.36 × 28,913.52
  4. Step 4: Simplify right side
    50,138.40x = 2,000,768,165.83
  5. Step 5: Solve for x
    x = 2,000,768,165.83/50,138.40
  6. Step 6: Final answer
    x = 39,904.91

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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.