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Finding the Fourth Proportional to 48,472.80, 72,694.80 and 18,873.60

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Solution

The fourth proportional to 48,472.80, 72,694.80 and 18,873.60 is: 28,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,472.80 : 72,694.80 = 18,873.60 : x
  2. Step 2: Convert to fraction form
    48,472.80/72,694.80 = 18,873.60/x
  3. Step 3: Cross multiply
    48,472.80x = 72,694.80 × 18,873.60
  4. Step 4: Simplify right side
    48,472.80x = 1,372,012,577.28
  5. Step 5: Solve for x
    x = 1,372,012,577.28/48,472.80
  6. Step 6: Final answer
    x = 28,304.79

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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.