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Finding the Fourth Proportional to 80,594.25, 120,911.88 and 47,342.45

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Solution

The fourth proportional to 80,594.25, 120,911.88 and 47,342.45 is: 71,025.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,594.25 : 120,911.88 = 47,342.45 : x
  2. Step 2: Convert to fraction form
    80,594.25/120,911.88 = 47,342.45/x
  3. Step 3: Cross multiply
    80,594.25x = 120,911.88 × 47,342.45
  4. Step 4: Simplify right side
    80,594.25x = 5,724,264,028.75
  5. Step 5: Solve for x
    x = 5,724,264,028.75/80,594.25
  6. Step 6: Final answer
    x = 71,025.71

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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.