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Finding the Fourth Proportional to 80,483.22, 120,747.87 and 38,953.62

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Solution

The fourth proportional to 80,483.22, 120,747.87 and 38,953.62 is: 58,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,483.22 : 120,747.87 = 38,953.62 : x
  2. Step 2: Convert to fraction form
    80,483.22/120,747.87 = 38,953.62/x
  3. Step 3: Cross multiply
    80,483.22x = 120,747.87 × 38,953.62
  4. Step 4: Simplify right side
    80,483.22x = 4,703,566,643.79
  5. Step 5: Solve for x
    x = 4,703,566,643.79/80,483.22
  6. Step 6: Final answer
    x = 58,441.58

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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.