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Finding the Fourth Proportional to 69,671.50, 96,150.32 and 40,992.64

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Solution

The fourth proportional to 69,671.50, 96,150.32 and 40,992.64 is: 56,571.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,671.50 : 96,150.32 = 40,992.64 : x
  2. Step 2: Convert to fraction form
    69,671.50/96,150.32 = 40,992.64/x
  3. Step 3: Cross multiply
    69,671.50x = 96,150.32 × 40,992.64
  4. Step 4: Simplify right side
    69,671.50x = 3,941,455,453.64
  5. Step 5: Solve for x
    x = 3,941,455,453.64/69,671.50
  6. Step 6: Final answer
    x = 56,571.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.