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Finding the Fourth Proportional to 87,907.64, 131,932.32 and 45,800.60

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Solution

The fourth proportional to 87,907.64, 131,932.32 and 45,800.60 is: 68,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,907.64 : 131,932.32 = 45,800.60 : x
  2. Step 2: Convert to fraction form
    87,907.64/131,932.32 = 45,800.60/x
  3. Step 3: Cross multiply
    87,907.64x = 131,932.32 × 45,800.60
  4. Step 4: Simplify right side
    87,907.64x = 6,042,579,415.39
  5. Step 5: Solve for x
    x = 6,042,579,415.39/87,907.64
  6. Step 6: Final answer
    x = 68,737.82

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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.