Home / 45,120.64-67,644.42-18,845.02

Finding the Fourth Proportional to 45,120.64, 67,644.42 and 18,845.02

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Solution

The fourth proportional to 45,120.64, 67,644.42 and 18,845.02 is: 28,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.64 : 67,644.42 = 18,845.02 : x
  2. Step 2: Convert to fraction form
    45,120.64/67,644.42 = 18,845.02/x
  3. Step 3: Cross multiply
    45,120.64x = 67,644.42 × 18,845.02
  4. Step 4: Simplify right side
    45,120.64x = 1,274,760,447.79
  5. Step 5: Solve for x
    x = 1,274,760,447.79/45,120.64
  6. Step 6: Final answer
    x = 28,252.27

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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.