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Finding the Fourth Proportional to 43,355.61, 65,037.72 and 11,766.15

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Solution

The fourth proportional to 43,355.61, 65,037.72 and 11,766.15 is: 17,650.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,355.61 : 65,037.72 = 11,766.15 : x
  2. Step 2: Convert to fraction form
    43,355.61/65,037.72 = 11,766.15/x
  3. Step 3: Cross multiply
    43,355.61x = 65,037.72 × 11,766.15
  4. Step 4: Simplify right side
    43,355.61x = 765,243,569.18
  5. Step 5: Solve for x
    x = 765,243,569.18/43,355.61
  6. Step 6: Final answer
    x = 17,650.39

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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.