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Finding the Fourth Proportional to 80,245.63, 119,841.51 and 64,474.63

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Solution

The fourth proportional to 80,245.63, 119,841.51 and 64,474.63 is: 96,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,245.63 : 119,841.51 = 64,474.63 : x
  2. Step 2: Convert to fraction form
    80,245.63/119,841.51 = 64,474.63/x
  3. Step 3: Cross multiply
    80,245.63x = 119,841.51 × 64,474.63
  4. Step 4: Simplify right side
    80,245.63x = 7,726,736,416.68
  5. Step 5: Solve for x
    x = 7,726,736,416.68/80,245.63
  6. Step 6: Final answer
    x = 96,288.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.