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Finding the Fourth Proportional to 50,259.69, 75,390.11 and 12,819.69

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Solution

The fourth proportional to 50,259.69, 75,390.11 and 12,819.69 is: 19,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,259.69 : 75,390.11 = 12,819.69 : x
  2. Step 2: Convert to fraction form
    50,259.69/75,390.11 = 12,819.69/x
  3. Step 3: Cross multiply
    50,259.69x = 75,390.11 × 12,819.69
  4. Step 4: Simplify right side
    50,259.69x = 966,477,839.27
  5. Step 5: Solve for x
    x = 966,477,839.27/50,259.69
  6. Step 6: Final answer
    x = 19,229.68

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1.5x scale

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.