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Finding the Fourth Proportional to 49,794.62, 74,664.36 and 19,778.45

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Solution

The fourth proportional to 49,794.62, 74,664.36 and 19,778.45 is: 29,656.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,794.62 : 74,664.36 = 19,778.45 : x
  2. Step 2: Convert to fraction form
    49,794.62/74,664.36 = 19,778.45/x
  3. Step 3: Cross multiply
    49,794.62x = 74,664.36 × 19,778.45
  4. Step 4: Simplify right side
    49,794.62x = 1,476,744,937.72
  5. Step 5: Solve for x
    x = 1,476,744,937.72/49,794.62
  6. Step 6: Final answer
    x = 29,656.72

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1.5x scale

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.