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Finding the Fourth Proportional to 62,430, 86,153.04 and 34,135.80

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Solution

The fourth proportional to 62,430, 86,153.04 and 34,135.80 is: 47,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,430 : 86,153.04 = 34,135.80 : x
  2. Step 2: Convert to fraction form
    62,430/86,153.04 = 34,135.80/x
  3. Step 3: Cross multiply
    62,430x = 86,153.04 × 34,135.80
  4. Step 4: Simplify right side
    62,430x = 2,940,902,942.83
  5. Step 5: Solve for x
    x = 2,940,902,942.83/62,430
  6. Step 6: Final answer
    x = 47,107.21

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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.