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Finding the Fourth Proportional to 47,027.60, 70,464.60 and 40,422.80

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Solution

The fourth proportional to 47,027.60, 70,464.60 and 40,422.80 is: 60,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,027.60 : 70,464.60 = 40,422.80 : x
  2. Step 2: Convert to fraction form
    47,027.60/70,464.60 = 40,422.80/x
  3. Step 3: Cross multiply
    47,027.60x = 70,464.60 × 40,422.80
  4. Step 4: Simplify right side
    47,027.60x = 2,848,376,432.88
  5. Step 5: Solve for x
    x = 2,848,376,432.88/47,027.60
  6. Step 6: Final answer
    x = 60,568.19

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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.