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Finding the Fourth Proportional to 69,008.94, 103,513.24 and 21,627.66

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Solution

The fourth proportional to 69,008.94, 103,513.24 and 21,627.66 is: 32,441.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,008.94 : 103,513.24 = 21,627.66 : x
  2. Step 2: Convert to fraction form
    69,008.94/103,513.24 = 21,627.66/x
  3. Step 3: Cross multiply
    69,008.94x = 103,513.24 × 21,627.66
  4. Step 4: Simplify right side
    69,008.94x = 2,238,749,160.22
  5. Step 5: Solve for x
    x = 2,238,749,160.22/69,008.94
  6. Step 6: Final answer
    x = 32,441.44

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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.