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Finding the Fourth Proportional to 50,975, 70,348.62 and 28,619

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Solution

The fourth proportional to 50,975, 70,348.62 and 28,619 is: 39,495.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,975 : 70,348.62 = 28,619 : x
  2. Step 2: Convert to fraction form
    50,975/70,348.62 = 28,619/x
  3. Step 3: Cross multiply
    50,975x = 70,348.62 × 28,619
  4. Step 4: Simplify right side
    50,975x = 2,013,307,155.78
  5. Step 5: Solve for x
    x = 2,013,307,155.78/50,975
  6. Step 6: Final answer
    x = 39,495.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.