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Finding the Fourth Proportional to 66,348.40, 99,522.60 and 19,600.60

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Solution

The fourth proportional to 66,348.40, 99,522.60 and 19,600.60 is: 29,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,348.40 : 99,522.60 = 19,600.60 : x
  2. Step 2: Convert to fraction form
    66,348.40/99,522.60 = 19,600.60/x
  3. Step 3: Cross multiply
    66,348.40x = 99,522.60 × 19,600.60
  4. Step 4: Simplify right side
    66,348.40x = 1,950,702,673.56
  5. Step 5: Solve for x
    x = 1,950,702,673.56/66,348.40
  6. Step 6: Final answer
    x = 29,400.90

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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.