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Finding the Fourth Proportional to 40,069, 60,103.50 and 10,885

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Solution

The fourth proportional to 40,069, 60,103.50 and 10,885 is: 16,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,069 : 60,103.50 = 10,885 : x
  2. Step 2: Convert to fraction form
    40,069/60,103.50 = 10,885/x
  3. Step 3: Cross multiply
    40,069x = 60,103.50 × 10,885
  4. Step 4: Simplify right side
    40,069x = 654,226,597.50
  5. Step 5: Solve for x
    x = 654,226,597.50/40,069
  6. Step 6: Final answer
    x = 16,327.50

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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.