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Finding the Fourth Proportional to 62,257, 85,914.66 and 39,901

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Solution

The fourth proportional to 62,257, 85,914.66 and 39,901 is: 55,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,257 : 85,914.66 = 39,901 : x
  2. Step 2: Convert to fraction form
    62,257/85,914.66 = 39,901/x
  3. Step 3: Cross multiply
    62,257x = 85,914.66 × 39,901
  4. Step 4: Simplify right side
    62,257x = 3,428,080,848.66
  5. Step 5: Solve for x
    x = 3,428,080,848.66/62,257
  6. Step 6: Final answer
    x = 55,063.38

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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.