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Finding the Fourth Proportional to 43,777.44, 65,665.44 and 12,612.60

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Solution

The fourth proportional to 43,777.44, 65,665.44 and 12,612.60 is: 18,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,777.44 : 65,665.44 = 12,612.60 : x
  2. Step 2: Convert to fraction form
    43,777.44/65,665.44 = 12,612.60/x
  3. Step 3: Cross multiply
    43,777.44x = 65,665.44 × 12,612.60
  4. Step 4: Simplify right side
    43,777.44x = 828,211,928.54
  5. Step 5: Solve for x
    x = 828,211,928.54/43,777.44
  6. Step 6: Final answer
    x = 18,918.69

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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.