Home / 54,146.31-74,721.20-30,272.73

Finding the Fourth Proportional to 54,146.31, 74,721.20 and 30,272.73

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Solution

The fourth proportional to 54,146.31, 74,721.20 and 30,272.73 is: 41,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,146.31 : 74,721.20 = 30,272.73 : x
  2. Step 2: Convert to fraction form
    54,146.31/74,721.20 = 30,272.73/x
  3. Step 3: Cross multiply
    54,146.31x = 74,721.20 × 30,272.73
  4. Step 4: Simplify right side
    54,146.31x = 2,262,014,561.51
  5. Step 5: Solve for x
    x = 2,262,014,561.51/54,146.31
  6. Step 6: Final answer
    x = 41,775.97

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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.