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Finding the Fourth Proportional to 47,353.89, 71,042.40 and 15,763.89

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Solution

The fourth proportional to 47,353.89, 71,042.40 and 15,763.89 is: 23,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,353.89 : 71,042.40 = 15,763.89 : x
  2. Step 2: Convert to fraction form
    47,353.89/71,042.40 = 15,763.89/x
  3. Step 3: Cross multiply
    47,353.89x = 71,042.40 × 15,763.89
  4. Step 4: Simplify right side
    47,353.89x = 1,119,904,578.94
  5. Step 5: Solve for x
    x = 1,119,904,578.94/47,353.89
  6. Step 6: Final answer
    x = 23,649.68

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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.