Home / 54,143.76-74,721.24-30,270.72

Finding the Fourth Proportional to 54,143.76, 74,721.24 and 30,270.72

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Solution

The fourth proportional to 54,143.76, 74,721.24 and 30,270.72 is: 41,775.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,143.76 : 74,721.24 = 30,270.72 : x
  2. Step 2: Convert to fraction form
    54,143.76/74,721.24 = 30,270.72/x
  3. Step 3: Cross multiply
    54,143.76x = 74,721.24 × 30,270.72
  4. Step 4: Simplify right side
    54,143.76x = 2,261,865,734.09
  5. Step 5: Solve for x
    x = 2,261,865,734.09/54,143.76
  6. Step 6: Final answer
    x = 41,775.19

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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.