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Finding the Fourth Proportional to 48,487.54, 72,717.10 and 18,898.32

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Solution

The fourth proportional to 48,487.54, 72,717.10 and 18,898.32 is: 28,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,487.54 : 72,717.10 = 18,898.32 : x
  2. Step 2: Convert to fraction form
    48,487.54/72,717.10 = 18,898.32/x
  3. Step 3: Cross multiply
    48,487.54x = 72,717.10 × 18,898.32
  4. Step 4: Simplify right side
    48,487.54x = 1,374,231,025.27
  5. Step 5: Solve for x
    x = 1,374,231,025.27/48,487.54
  6. Step 6: Final answer
    x = 28,341.94

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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.