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Finding the Fourth Proportional to 67,881.29, 101,789.06 and 39,810.54

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Solution

The fourth proportional to 67,881.29, 101,789.06 and 39,810.54 is: 59,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,881.29 : 101,789.06 = 39,810.54 : x
  2. Step 2: Convert to fraction form
    67,881.29/101,789.06 = 39,810.54/x
  3. Step 3: Cross multiply
    67,881.29x = 101,789.06 × 39,810.54
  4. Step 4: Simplify right side
    67,881.29x = 4,052,277,054.79
  5. Step 5: Solve for x
    x = 4,052,277,054.79/67,881.29
  6. Step 6: Final answer
    x = 59,696.52

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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.