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Finding the Fourth Proportional to 62,894.16, 86,815.26 and 39,034.80

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Solution

The fourth proportional to 62,894.16, 86,815.26 and 39,034.80 is: 53,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,894.16 : 86,815.26 = 39,034.80 : x
  2. Step 2: Convert to fraction form
    62,894.16/86,815.26 = 39,034.80/x
  3. Step 3: Cross multiply
    62,894.16x = 86,815.26 × 39,034.80
  4. Step 4: Simplify right side
    62,894.16x = 3,388,816,311.05
  5. Step 5: Solve for x
    x = 3,388,816,311.05/62,894.16
  6. Step 6: Final answer
    x = 53,881.26

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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.