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Finding the Fourth Proportional to 73,342, 101,212.05 and 39,808

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Solution

The fourth proportional to 73,342, 101,212.05 and 39,808 is: 54,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,342 : 101,212.05 = 39,808 : x
  2. Step 2: Convert to fraction form
    73,342/101,212.05 = 39,808/x
  3. Step 3: Cross multiply
    73,342x = 101,212.05 × 39,808
  4. Step 4: Simplify right side
    73,342x = 4,029,049,286.40
  5. Step 5: Solve for x
    x = 4,029,049,286.40/73,342
  6. Step 6: Final answer
    x = 54,935.09

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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.