Home / 49,438.78-74,161.64-19,856.61

Finding the Fourth Proportional to 49,438.78, 74,161.64 and 19,856.61

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Solution

The fourth proportional to 49,438.78, 74,161.64 and 19,856.61 is: 29,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,438.78 : 74,161.64 = 19,856.61 : x
  2. Step 2: Convert to fraction form
    49,438.78/74,161.64 = 19,856.61/x
  3. Step 3: Cross multiply
    49,438.78x = 74,161.64 × 19,856.61
  4. Step 4: Simplify right side
    49,438.78x = 1,472,598,812.08
  5. Step 5: Solve for x
    x = 1,472,598,812.08/49,438.78
  6. Step 6: Final answer
    x = 29,786.31

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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.