Home / 49,397.78-74,100.13-19,815.62

Finding the Fourth Proportional to 49,397.78, 74,100.13 and 19,815.62

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Solution

The fourth proportional to 49,397.78, 74,100.13 and 19,815.62 is: 29,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,397.78 : 74,100.13 = 19,815.62 : x
  2. Step 2: Convert to fraction form
    49,397.78/74,100.13 = 19,815.62/x
  3. Step 3: Cross multiply
    49,397.78x = 74,100.13 × 19,815.62
  4. Step 4: Simplify right side
    49,397.78x = 1,468,339,647.53
  5. Step 5: Solve for x
    x = 1,468,339,647.53/49,397.78
  6. Step 6: Final answer
    x = 29,724.81

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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.