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Finding the Fourth Proportional to 66,352.40, 99,528.60 and 19,604.60

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Solution

The fourth proportional to 66,352.40, 99,528.60 and 19,604.60 is: 29,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,352.40 : 99,528.60 = 19,604.60 : x
  2. Step 2: Convert to fraction form
    66,352.40/99,528.60 = 19,604.60/x
  3. Step 3: Cross multiply
    66,352.40x = 99,528.60 × 19,604.60
  4. Step 4: Simplify right side
    66,352.40x = 1,951,218,391.56
  5. Step 5: Solve for x
    x = 1,951,218,391.56/66,352.40
  6. Step 6: Final answer
    x = 29,406.90

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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.