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Finding the Fourth Proportional to 62,929, 86,842 and 34,634.68

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Solution

The fourth proportional to 62,929, 86,842 and 34,634.68 is: 47,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,929 : 86,842 = 34,634.68 : x
  2. Step 2: Convert to fraction form
    62,929/86,842 = 34,634.68/x
  3. Step 3: Cross multiply
    62,929x = 86,842 × 34,634.68
  4. Step 4: Simplify right side
    62,929x = 3,007,744,880.56
  5. Step 5: Solve for x
    x = 3,007,744,880.56/62,929
  6. Step 6: Final answer
    x = 47,795.85

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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.