Home / 54,579.78-75,314.76-30,705.96

Finding the Fourth Proportional to 54,579.78, 75,314.76 and 30,705.96

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Solution

The fourth proportional to 54,579.78, 75,314.76 and 30,705.96 is: 42,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,579.78 : 75,314.76 = 30,705.96 : x
  2. Step 2: Convert to fraction form
    54,579.78/75,314.76 = 30,705.96/x
  3. Step 3: Cross multiply
    54,579.78x = 75,314.76 × 30,705.96
  4. Step 4: Simplify right side
    54,579.78x = 2,312,612,007.97
  5. Step 5: Solve for x
    x = 2,312,612,007.97/54,579.78
  6. Step 6: Final answer
    x = 42,371.22

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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.