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Finding the Fourth Proportional to 70,899.62, 106,249.19 and 39,323.59

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Solution

The fourth proportional to 70,899.62, 106,249.19 and 39,323.59 is: 58,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,899.62 : 106,249.19 = 39,323.59 : x
  2. Step 2: Convert to fraction form
    70,899.62/106,249.19 = 39,323.59/x
  3. Step 3: Cross multiply
    70,899.62x = 106,249.19 × 39,323.59
  4. Step 4: Simplify right side
    70,899.62x = 4,178,099,585.39
  5. Step 5: Solve for x
    x = 4,178,099,585.39/70,899.62
  6. Step 6: Final answer
    x = 58,929.79

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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.