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Finding the Fourth Proportional to 69,137.86, 103,620.50 and 29,649.16

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Solution

The fourth proportional to 69,137.86, 103,620.50 and 29,649.16 is: 44,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,137.86 : 103,620.50 = 29,649.16 : x
  2. Step 2: Convert to fraction form
    69,137.86/103,620.50 = 29,649.16/x
  3. Step 3: Cross multiply
    69,137.86x = 103,620.50 × 29,649.16
  4. Step 4: Simplify right side
    69,137.86x = 3,072,260,783.78
  5. Step 5: Solve for x
    x = 3,072,260,783.78/69,137.86
  6. Step 6: Final answer
    x = 44,436.74

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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.