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Finding the Fourth Proportional to 48,367.45, 72,579.19 and 20,285.00

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Solution

The fourth proportional to 48,367.45, 72,579.19 and 20,285.00 is: 30,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,367.45 : 72,579.19 = 20,285.00 : x
  2. Step 2: Convert to fraction form
    48,367.45/72,579.19 = 20,285.00/x
  3. Step 3: Cross multiply
    48,367.45x = 72,579.19 × 20,285.00
  4. Step 4: Simplify right side
    48,367.45x = 1,472,268,765.75
  5. Step 5: Solve for x
    x = 1,472,268,765.75/48,367.45
  6. Step 6: Final answer
    x = 30,439.25

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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.