Home / 47,135.60-70,688.38-15,539.78

Finding the Fourth Proportional to 47,135.60, 70,688.38 and 15,539.78

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Solution

The fourth proportional to 47,135.60, 70,688.38 and 15,539.78 is: 23,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,135.60 : 70,688.38 = 15,539.78 : x
  2. Step 2: Convert to fraction form
    47,135.60/70,688.38 = 15,539.78/x
  3. Step 3: Cross multiply
    47,135.60x = 70,688.38 × 15,539.78
  4. Step 4: Simplify right side
    47,135.60x = 1,098,481,481.47
  5. Step 5: Solve for x
    x = 1,098,481,481.47/47,135.60
  6. Step 6: Final answer
    x = 23,304.71

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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.