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Finding the Fourth Proportional to 52,951.05, 79,405.77 and 19,209

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Solution

The fourth proportional to 52,951.05, 79,405.77 and 19,209 is: 28,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,951.05 : 79,405.77 = 19,209 : x
  2. Step 2: Convert to fraction form
    52,951.05/79,405.77 = 19,209/x
  3. Step 3: Cross multiply
    52,951.05x = 79,405.77 × 19,209
  4. Step 4: Simplify right side
    52,951.05x = 1,525,305,435.93
  5. Step 5: Solve for x
    x = 1,525,305,435.93/52,951.05
  6. Step 6: Final answer
    x = 28,805.95

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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.