Home / 47,972.44-71,957.04-12,910.78

Finding the Fourth Proportional to 47,972.44, 71,957.04 and 12,910.78

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Solution

The fourth proportional to 47,972.44, 71,957.04 and 12,910.78 is: 19,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,972.44 : 71,957.04 = 12,910.78 : x
  2. Step 2: Convert to fraction form
    47,972.44/71,957.04 = 12,910.78/x
  3. Step 3: Cross multiply
    47,972.44x = 71,957.04 × 12,910.78
  4. Step 4: Simplify right side
    47,972.44x = 929,021,512.89
  5. Step 5: Solve for x
    x = 929,021,512.89/47,972.44
  6. Step 6: Final answer
    x = 19,365.73

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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.