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Finding the Fourth Proportional to 80,146.80, 120,088.44 and 50,491.08

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Solution

The fourth proportional to 80,146.80, 120,088.44 and 50,491.08 is: 75,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,146.80 : 120,088.44 = 50,491.08 : x
  2. Step 2: Convert to fraction form
    80,146.80/120,088.44 = 50,491.08/x
  3. Step 3: Cross multiply
    80,146.80x = 120,088.44 × 50,491.08
  4. Step 4: Simplify right side
    80,146.80x = 6,063,395,031.12
  5. Step 5: Solve for x
    x = 6,063,395,031.12/80,146.80
  6. Step 6: Final answer
    x = 75,653.61

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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.