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Finding the Fourth Proportional to 48,393.48, 72,609 and 18,832.08

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Solution

The fourth proportional to 48,393.48, 72,609 and 18,832.08 is: 28,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,393.48 : 72,609 = 18,832.08 : x
  2. Step 2: Convert to fraction form
    48,393.48/72,609 = 18,832.08/x
  3. Step 3: Cross multiply
    48,393.48x = 72,609 × 18,832.08
  4. Step 4: Simplify right side
    48,393.48x = 1,367,378,496.72
  5. Step 5: Solve for x
    x = 1,367,378,496.72/48,393.48
  6. Step 6: Final answer
    x = 28,255.43

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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.