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Finding the Fourth Proportional to 48,388.49, 72,554.48 and 18,771.72

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Solution

The fourth proportional to 48,388.49, 72,554.48 and 18,771.72 is: 28,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,388.49 : 72,554.48 = 18,771.72 : x
  2. Step 2: Convert to fraction form
    48,388.49/72,554.48 = 18,771.72/x
  3. Step 3: Cross multiply
    48,388.49x = 72,554.48 × 18,771.72
  4. Step 4: Simplify right side
    48,388.49x = 1,361,972,383.31
  5. Step 5: Solve for x
    x = 1,361,972,383.31/48,388.49
  6. Step 6: Final answer
    x = 28,146.62

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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.