Home / 54,211.82-74,812.21-30,338.28

Finding the Fourth Proportional to 54,211.82, 74,812.21 and 30,338.28

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Solution

The fourth proportional to 54,211.82, 74,812.21 and 30,338.28 is: 41,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,211.82 : 74,812.21 = 30,338.28 : x
  2. Step 2: Convert to fraction form
    54,211.82/74,812.21 = 30,338.28/x
  3. Step 3: Cross multiply
    54,211.82x = 74,812.21 × 30,338.28
  4. Step 4: Simplify right side
    54,211.82x = 2,269,673,698.55
  5. Step 5: Solve for x
    x = 2,269,673,698.55/54,211.82
  6. Step 6: Final answer
    x = 41,866.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.