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Finding the Fourth Proportional to 48,473.80, 72,696.30 and 18,874.60

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Solution

The fourth proportional to 48,473.80, 72,696.30 and 18,874.60 is: 28,306.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,473.80 : 72,696.30 = 18,874.60 : x
  2. Step 2: Convert to fraction form
    48,473.80/72,696.30 = 18,874.60/x
  3. Step 3: Cross multiply
    48,473.80x = 72,696.30 × 18,874.60
  4. Step 4: Simplify right side
    48,473.80x = 1,372,113,583.98
  5. Step 5: Solve for x
    x = 1,372,113,583.98/48,473.80
  6. Step 6: Final answer
    x = 28,306.29

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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.