Home / 49,918.26-74,876.52-12,478.56

Finding the Fourth Proportional to 49,918.26, 74,876.52 and 12,478.56

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Solution

The fourth proportional to 49,918.26, 74,876.52 and 12,478.56 is: 18,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,918.26 : 74,876.52 = 12,478.56 : x
  2. Step 2: Convert to fraction form
    49,918.26/74,876.52 = 12,478.56/x
  3. Step 3: Cross multiply
    49,918.26x = 74,876.52 × 12,478.56
  4. Step 4: Simplify right side
    49,918.26x = 934,351,147.41
  5. Step 5: Solve for x
    x = 934,351,147.41/49,918.26
  6. Step 6: Final answer
    x = 18,717.62

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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.