Home / 49,427.62-74,140.82-11,988

Finding the Fourth Proportional to 49,427.62, 74,140.82 and 11,988

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Solution

The fourth proportional to 49,427.62, 74,140.82 and 11,988 is: 17,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,427.62 : 74,140.82 = 11,988 : x
  2. Step 2: Convert to fraction form
    49,427.62/74,140.82 = 11,988/x
  3. Step 3: Cross multiply
    49,427.62x = 74,140.82 × 11,988
  4. Step 4: Simplify right side
    49,427.62x = 888,800,135.18
  5. Step 5: Solve for x
    x = 888,800,135.18/49,427.62
  6. Step 6: Final answer
    x = 17,981.85

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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.