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Finding the Fourth Proportional to 41,140.45, 61,664.02 and 18,907.89

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Solution

The fourth proportional to 41,140.45, 61,664.02 and 18,907.89 is: 28,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,140.45 : 61,664.02 = 18,907.89 : x
  2. Step 2: Convert to fraction form
    41,140.45/61,664.02 = 18,907.89/x
  3. Step 3: Cross multiply
    41,140.45x = 61,664.02 × 18,907.89
  4. Step 4: Simplify right side
    41,140.45x = 1,165,936,228.61
  5. Step 5: Solve for x
    x = 1,165,936,228.61/41,140.45
  6. Step 6: Final answer
    x = 28,340.39

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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.