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Finding the Fourth Proportional to 48,375.48, 72,581.88 and 18,814.14

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Solution

The fourth proportional to 48,375.48, 72,581.88 and 18,814.14 is: 28,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,375.48 : 72,581.88 = 18,814.14 : x
  2. Step 2: Convert to fraction form
    48,375.48/72,581.88 = 18,814.14/x
  3. Step 3: Cross multiply
    48,375.48x = 72,581.88 × 18,814.14
  4. Step 4: Simplify right side
    48,375.48x = 1,365,565,651.78
  5. Step 5: Solve for x
    x = 1,365,565,651.78/48,375.48
  6. Step 6: Final answer
    x = 28,228.47

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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.