Home / 45,497.82-68,320.81-28,078.38

Finding the Fourth Proportional to 45,497.82, 68,320.81 and 28,078.38

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Solution

The fourth proportional to 45,497.82, 68,320.81 and 28,078.38 is: 42,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,497.82 : 68,320.81 = 28,078.38 : x
  2. Step 2: Convert to fraction form
    45,497.82/68,320.81 = 28,078.38/x
  3. Step 3: Cross multiply
    45,497.82x = 68,320.81 × 28,078.38
  4. Step 4: Simplify right side
    45,497.82x = 1,918,337,665.09
  5. Step 5: Solve for x
    x = 1,918,337,665.09/45,497.82
  6. Step 6: Final answer
    x = 42,163.29

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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.