Home / 54,288.64-74,917.42-30,415.24

Finding the Fourth Proportional to 54,288.64, 74,917.42 and 30,415.24

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Solution

The fourth proportional to 54,288.64, 74,917.42 and 30,415.24 is: 41,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,288.64 : 74,917.42 = 30,415.24 : x
  2. Step 2: Convert to fraction form
    54,288.64/74,917.42 = 30,415.24/x
  3. Step 3: Cross multiply
    54,288.64x = 74,917.42 × 30,415.24
  4. Step 4: Simplify right side
    54,288.64x = 2,278,631,309.48
  5. Step 5: Solve for x
    x = 2,278,631,309.48/54,288.64
  6. Step 6: Final answer
    x = 41,972.53

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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.