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Finding the Fourth Proportional to 52,751.54, 79,127.33 and 15,815.54

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Solution

The fourth proportional to 52,751.54, 79,127.33 and 15,815.54 is: 23,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,751.54 : 79,127.33 = 15,815.54 : x
  2. Step 2: Convert to fraction form
    52,751.54/79,127.33 = 15,815.54/x
  3. Step 3: Cross multiply
    52,751.54x = 79,127.33 × 15,815.54
  4. Step 4: Simplify right side
    52,751.54x = 1,251,441,571.45
  5. Step 5: Solve for x
    x = 1,251,441,571.45/52,751.54
  6. Step 6: Final answer
    x = 23,723.32

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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.