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Finding the Fourth Proportional to 66,327.03, 99,508.76 and 19,579.89

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Solution

The fourth proportional to 66,327.03, 99,508.76 and 19,579.89 is: 29,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,327.03 : 99,508.76 = 19,579.89 : x
  2. Step 2: Convert to fraction form
    66,327.03/99,508.76 = 19,579.89/x
  3. Step 3: Cross multiply
    66,327.03x = 99,508.76 × 19,579.89
  4. Step 4: Simplify right side
    66,327.03x = 1,948,370,476.94
  5. Step 5: Solve for x
    x = 1,948,370,476.94/66,327.03
  6. Step 6: Final answer
    x = 29,375.21

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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.