Home / 45,187.67-67,791.43-18,533.81

Finding the Fourth Proportional to 45,187.67, 67,791.43 and 18,533.81

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Solution

The fourth proportional to 45,187.67, 67,791.43 and 18,533.81 is: 27,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,187.67 : 67,791.43 = 18,533.81 : x
  2. Step 2: Convert to fraction form
    45,187.67/67,791.43 = 18,533.81/x
  3. Step 3: Cross multiply
    45,187.67x = 67,791.43 × 18,533.81
  4. Step 4: Simplify right side
    45,187.67x = 1,256,433,675.89
  5. Step 5: Solve for x
    x = 1,256,433,675.89/45,187.67
  6. Step 6: Final answer
    x = 27,804.79

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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.