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Finding the Fourth Proportional to 50,464, 69,642.48 and 28,108

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Solution

The fourth proportional to 50,464, 69,642.48 and 28,108 is: 38,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,464 : 69,642.48 = 28,108 : x
  2. Step 2: Convert to fraction form
    50,464/69,642.48 = 28,108/x
  3. Step 3: Cross multiply
    50,464x = 69,642.48 × 28,108
  4. Step 4: Simplify right side
    50,464x = 1,957,510,827.84
  5. Step 5: Solve for x
    x = 1,957,510,827.84/50,464
  6. Step 6: Final answer
    x = 38,790.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.