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Finding the Fourth Proportional to 69,382.44, 104,120.64 and 43,101.72

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Solution

The fourth proportional to 69,382.44, 104,120.64 and 43,101.72 is: 64,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,382.44 : 104,120.64 = 43,101.72 : x
  2. Step 2: Convert to fraction form
    69,382.44/104,120.64 = 43,101.72/x
  3. Step 3: Cross multiply
    69,382.44x = 104,120.64 × 43,101.72
  4. Step 4: Simplify right side
    69,382.44x = 4,487,778,671.50
  5. Step 5: Solve for x
    x = 4,487,778,671.50/69,382.44
  6. Step 6: Final answer
    x = 64,681.76

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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.