Home / 45,785.72-68,667.51-12,505.96

Finding the Fourth Proportional to 45,785.72, 68,667.51 and 12,505.96

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Solution

The fourth proportional to 45,785.72, 68,667.51 and 12,505.96 is: 18,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,785.72 : 68,667.51 = 12,505.96 : x
  2. Step 2: Convert to fraction form
    45,785.72/68,667.51 = 12,505.96/x
  3. Step 3: Cross multiply
    45,785.72x = 68,667.51 × 12,505.96
  4. Step 4: Simplify right side
    45,785.72x = 858,753,266.09
  5. Step 5: Solve for x
    x = 858,753,266.09/45,785.72
  6. Step 6: Final answer
    x = 18,755.92

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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.