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Finding the Fourth Proportional to 67,485.80, 101,217.74 and 30,037.06

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Solution

The fourth proportional to 67,485.80, 101,217.74 and 30,037.06 is: 45,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,485.80 : 101,217.74 = 30,037.06 : x
  2. Step 2: Convert to fraction form
    67,485.80/101,217.74 = 30,037.06/x
  3. Step 3: Cross multiply
    67,485.80x = 101,217.74 × 30,037.06
  4. Step 4: Simplify right side
    67,485.80x = 3,040,283,329.44
  5. Step 5: Solve for x
    x = 3,040,283,329.44/67,485.80
  6. Step 6: Final answer
    x = 45,050.71

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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.