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Finding the Fourth Proportional to 80,053.60, 119,907.60 and 66,229.60

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Solution

The fourth proportional to 80,053.60, 119,907.60 and 66,229.60 is: 99,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,053.60 : 119,907.60 = 66,229.60 : x
  2. Step 2: Convert to fraction form
    80,053.60/119,907.60 = 66,229.60/x
  3. Step 3: Cross multiply
    80,053.60x = 119,907.60 × 66,229.60
  4. Step 4: Simplify right side
    80,053.60x = 7,941,432,384.96
  5. Step 5: Solve for x
    x = 7,941,432,384.96/80,053.60
  6. Step 6: Final answer
    x = 99,201.44

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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.