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Finding the Fourth Proportional to 45,545.63, 68,320.26 and 14,380.88

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Solution

The fourth proportional to 45,545.63, 68,320.26 and 14,380.88 is: 21,571.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,545.63 : 68,320.26 = 14,380.88 : x
  2. Step 2: Convert to fraction form
    45,545.63/68,320.26 = 14,380.88/x
  3. Step 3: Cross multiply
    45,545.63x = 68,320.26 × 14,380.88
  4. Step 4: Simplify right side
    45,545.63x = 982,505,119.03
  5. Step 5: Solve for x
    x = 982,505,119.03/45,545.63
  6. Step 6: Final answer
    x = 21,571.89

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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.