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Finding the Fourth Proportional to 47,702.52, 71,579.70 and 20,019.96

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Solution

The fourth proportional to 47,702.52, 71,579.70 and 20,019.96 is: 30,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,702.52 : 71,579.70 = 20,019.96 : x
  2. Step 2: Convert to fraction form
    47,702.52/71,579.70 = 20,019.96/x
  3. Step 3: Cross multiply
    47,702.52x = 71,579.70 × 20,019.96
  4. Step 4: Simplify right side
    47,702.52x = 1,433,022,730.81
  5. Step 5: Solve for x
    x = 1,433,022,730.81/47,702.52
  6. Step 6: Final answer
    x = 30,040.82

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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.