Home / 54,642.92-75,405.19-30,443.31

Finding the Fourth Proportional to 54,642.92, 75,405.19 and 30,443.31

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Solution

The fourth proportional to 54,642.92, 75,405.19 and 30,443.31 is: 42,010.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,642.92 : 75,405.19 = 30,443.31 : x
  2. Step 2: Convert to fraction form
    54,642.92/75,405.19 = 30,443.31/x
  3. Step 3: Cross multiply
    54,642.92x = 75,405.19 × 30,443.31
  4. Step 4: Simplify right side
    54,642.92x = 2,295,583,574.78
  5. Step 5: Solve for x
    x = 2,295,583,574.78/54,642.92
  6. Step 6: Final answer
    x = 42,010.63

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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.