Home / 45,580.05-68,340.39-18,918.69

Finding the Fourth Proportional to 45,580.05, 68,340.39 and 18,918.69

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Solution

The fourth proportional to 45,580.05, 68,340.39 and 18,918.69 is: 28,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,580.05 : 68,340.39 = 18,918.69 : x
  2. Step 2: Convert to fraction form
    45,580.05/68,340.39 = 18,918.69/x
  3. Step 3: Cross multiply
    45,580.05x = 68,340.39 × 18,918.69
  4. Step 4: Simplify right side
    45,580.05x = 1,292,910,652.89
  5. Step 5: Solve for x
    x = 1,292,910,652.89/45,580.05
  6. Step 6: Final answer
    x = 28,365.71

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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.