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Finding the Fourth Proportional to 45,905.60, 68,858.40 and 43,961.60

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Solution

The fourth proportional to 45,905.60, 68,858.40 and 43,961.60 is: 65,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,905.60 : 68,858.40 = 43,961.60 : x
  2. Step 2: Convert to fraction form
    45,905.60/68,858.40 = 43,961.60/x
  3. Step 3: Cross multiply
    45,905.60x = 68,858.40 × 43,961.60
  4. Step 4: Simplify right side
    45,905.60x = 3,027,125,437.44
  5. Step 5: Solve for x
    x = 3,027,125,437.44/45,905.60
  6. Step 6: Final answer
    x = 65,942.40

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1.5x scale

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.