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Finding the Fourth Proportional to 68,063.19, 101,954.34 and 39,897.72

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Solution

The fourth proportional to 68,063.19, 101,954.34 and 39,897.72 is: 59,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,063.19 : 101,954.34 = 39,897.72 : x
  2. Step 2: Convert to fraction form
    68,063.19/101,954.34 = 39,897.72/x
  3. Step 3: Cross multiply
    68,063.19x = 101,954.34 × 39,897.72
  4. Step 4: Simplify right side
    68,063.19x = 4,067,745,710.10
  5. Step 5: Solve for x
    x = 4,067,745,710.10/68,063.19
  6. Step 6: Final answer
    x = 59,764.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.