Home / 45,905.67-68,849.73-12,617.37

Finding the Fourth Proportional to 45,905.67, 68,849.73 and 12,617.37

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Solution

The fourth proportional to 45,905.67, 68,849.73 and 12,617.37 is: 18,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,905.67 : 68,849.73 = 12,617.37 : x
  2. Step 2: Convert to fraction form
    45,905.67/68,849.73 = 12,617.37/x
  3. Step 3: Cross multiply
    45,905.67x = 68,849.73 × 12,617.37
  4. Step 4: Simplify right side
    45,905.67x = 868,702,517.81
  5. Step 5: Solve for x
    x = 868,702,517.81/45,905.67
  6. Step 6: Final answer
    x = 18,923.64

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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.