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Finding the Fourth Proportional to 43,354.59, 65,036.22 and 11,765.15

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Solution

The fourth proportional to 43,354.59, 65,036.22 and 11,765.15 is: 17,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,354.59 : 65,036.22 = 11,765.15 : x
  2. Step 2: Convert to fraction form
    43,354.59/65,036.22 = 11,765.15/x
  3. Step 3: Cross multiply
    43,354.59x = 65,036.22 × 11,765.15
  4. Step 4: Simplify right side
    43,354.59x = 765,160,883.73
  5. Step 5: Solve for x
    x = 765,160,883.73/43,354.59
  6. Step 6: Final answer
    x = 17,648.90

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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.