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Finding the Fourth Proportional to 69,153.60, 103,726.72 and 39,552.64

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Solution

The fourth proportional to 69,153.60, 103,726.72 and 39,552.64 is: 59,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,153.60 : 103,726.72 = 39,552.64 : x
  2. Step 2: Convert to fraction form
    69,153.60/103,726.72 = 39,552.64/x
  3. Step 3: Cross multiply
    69,153.60x = 103,726.72 × 39,552.64
  4. Step 4: Simplify right side
    69,153.60x = 4,102,665,614.54
  5. Step 5: Solve for x
    x = 4,102,665,614.54/69,153.60
  6. Step 6: Final answer
    x = 59,326.86

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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.