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Finding the Fourth Proportional to 49,196, 73,801.20 and 15,905

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Solution

The fourth proportional to 49,196, 73,801.20 and 15,905 is: 23,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,196 : 73,801.20 = 15,905 : x
  2. Step 2: Convert to fraction form
    49,196/73,801.20 = 15,905/x
  3. Step 3: Cross multiply
    49,196x = 73,801.20 × 15,905
  4. Step 4: Simplify right side
    49,196x = 1,173,808,086
  5. Step 5: Solve for x
    x = 1,173,808,086/49,196
  6. Step 6: Final answer
    x = 23,859.83

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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.