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Finding the Fourth Proportional to 42,576, 63,920.52 and 36,375.84

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Solution

The fourth proportional to 42,576, 63,920.52 and 36,375.84 is: 54,612.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,576 : 63,920.52 = 36,375.84 : x
  2. Step 2: Convert to fraction form
    42,576/63,920.52 = 36,375.84/x
  3. Step 3: Cross multiply
    42,576x = 63,920.52 × 36,375.84
  4. Step 4: Simplify right side
    42,576x = 2,325,162,608.24
  5. Step 5: Solve for x
    x = 2,325,162,608.24/42,576
  6. Step 6: Final answer
    x = 54,612.05

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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.