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Finding the Fourth Proportional to 45,702, 68,563.08 and 19,429.20

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Solution

The fourth proportional to 45,702, 68,563.08 and 19,429.20 is: 29,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,702 : 68,563.08 = 19,429.20 : x
  2. Step 2: Convert to fraction form
    45,702/68,563.08 = 19,429.20/x
  3. Step 3: Cross multiply
    45,702x = 68,563.08 × 19,429.20
  4. Step 4: Simplify right side
    45,702x = 1,332,125,793.94
  5. Step 5: Solve for x
    x = 1,332,125,793.94/45,702
  6. Step 6: Final answer
    x = 29,148.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.