Home / 52,138.70-71,951.78-28,265.75

Finding the Fourth Proportional to 52,138.70, 71,951.78 and 28,265.75

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Solution

The fourth proportional to 52,138.70, 71,951.78 and 28,265.75 is: 39,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,138.70 : 71,951.78 = 28,265.75 : x
  2. Step 2: Convert to fraction form
    52,138.70/71,951.78 = 28,265.75/x
  3. Step 3: Cross multiply
    52,138.70x = 71,951.78 × 28,265.75
  4. Step 4: Simplify right side
    52,138.70x = 2,033,771,025.54
  5. Step 5: Solve for x
    x = 2,033,771,025.54/52,138.70
  6. Step 6: Final answer
    x = 39,006.94

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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.