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Finding the Fourth Proportional to 48,394.79, 72,592.18 and 18,819.54

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Solution

The fourth proportional to 48,394.79, 72,592.18 and 18,819.54 is: 28,229.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,394.79 : 72,592.18 = 18,819.54 : x
  2. Step 2: Convert to fraction form
    48,394.79/72,592.18 = 18,819.54/x
  3. Step 3: Cross multiply
    48,394.79x = 72,592.18 × 18,819.54
  4. Step 4: Simplify right side
    48,394.79x = 1,366,151,435.20
  5. Step 5: Solve for x
    x = 1,366,151,435.20/48,394.79
  6. Step 6: Final answer
    x = 28,229.31

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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.