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Finding the Fourth Proportional to 75,231.39, 103,819.32 and 45,017.97

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Solution

The fourth proportional to 75,231.39, 103,819.32 and 45,017.97 is: 62,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,231.39 : 103,819.32 = 45,017.97 : x
  2. Step 2: Convert to fraction form
    75,231.39/103,819.32 = 45,017.97/x
  3. Step 3: Cross multiply
    75,231.39x = 103,819.32 × 45,017.97
  4. Step 4: Simplify right side
    75,231.39x = 4,673,735,033.18
  5. Step 5: Solve for x
    x = 4,673,735,033.18/75,231.39
  6. Step 6: Final answer
    x = 62,124.80

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1.5x scale

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.