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Finding the Fourth Proportional to 56,403.73, 84,546.06 and 18,928.27

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Solution

The fourth proportional to 56,403.73, 84,546.06 and 18,928.27 is: 28,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,403.73 : 84,546.06 = 18,928.27 : x
  2. Step 2: Convert to fraction form
    56,403.73/84,546.06 = 18,928.27/x
  3. Step 3: Cross multiply
    56,403.73x = 84,546.06 × 18,928.27
  4. Step 4: Simplify right side
    56,403.73x = 1,600,310,651.12
  5. Step 5: Solve for x
    x = 1,600,310,651.12/56,403.73
  6. Step 6: Final answer
    x = 28,372.43

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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.