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Finding the Fourth Proportional to 67,729.67, 101,604.03 and 28,277.81

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Solution

The fourth proportional to 67,729.67, 101,604.03 and 28,277.81 is: 42,420.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,729.67 : 101,604.03 = 28,277.81 : x
  2. Step 2: Convert to fraction form
    67,729.67/101,604.03 = 28,277.81/x
  3. Step 3: Cross multiply
    67,729.67x = 101,604.03 × 28,277.81
  4. Step 4: Simplify right side
    67,729.67x = 2,873,139,455.57
  5. Step 5: Solve for x
    x = 2,873,139,455.57/67,729.67
  6. Step 6: Final answer
    x = 42,420.69

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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.