Home / 49,778.45-74,706.56-18,622.61

Finding the Fourth Proportional to 49,778.45, 74,706.56 and 18,622.61

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Solution

The fourth proportional to 49,778.45, 74,706.56 and 18,622.61 is: 27,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,778.45 : 74,706.56 = 18,622.61 : x
  2. Step 2: Convert to fraction form
    49,778.45/74,706.56 = 18,622.61/x
  3. Step 3: Cross multiply
    49,778.45x = 74,706.56 × 18,622.61
  4. Step 4: Simplify right side
    49,778.45x = 1,391,231,038.21
  5. Step 5: Solve for x
    x = 1,391,231,038.21/49,778.45
  6. Step 6: Final answer
    x = 27,948.46

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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.