Home / 52,081.20-78,109.61-14,644.87

Finding the Fourth Proportional to 52,081.20, 78,109.61 and 14,644.87

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Solution

The fourth proportional to 52,081.20, 78,109.61 and 14,644.87 is: 21,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,081.20 : 78,109.61 = 14,644.87 : x
  2. Step 2: Convert to fraction form
    52,081.20/78,109.61 = 14,644.87/x
  3. Step 3: Cross multiply
    52,081.20x = 78,109.61 × 14,644.87
  4. Step 4: Simplify right side
    52,081.20x = 1,143,904,815.70
  5. Step 5: Solve for x
    x = 1,143,904,815.70/52,081.20
  6. Step 6: Final answer
    x = 21,963.87

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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.