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Finding the Fourth Proportional to 80,503.68, 120,755.52 and 25,104

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Solution

The fourth proportional to 80,503.68, 120,755.52 and 25,104 is: 37,656

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,503.68 : 120,755.52 = 25,104 : x
  2. Step 2: Convert to fraction form
    80,503.68/120,755.52 = 25,104/x
  3. Step 3: Cross multiply
    80,503.68x = 120,755.52 × 25,104
  4. Step 4: Simplify right side
    80,503.68x = 3,031,446,574.08
  5. Step 5: Solve for x
    x = 3,031,446,574.08/80,503.68
  6. Step 6: Final answer
    x = 37,656

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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.