Home / 54,936.52-75,815.40-31,065.28

Finding the Fourth Proportional to 54,936.52, 75,815.40 and 31,065.28

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Solution

The fourth proportional to 54,936.52, 75,815.40 and 31,065.28 is: 42,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,936.52 : 75,815.40 = 31,065.28 : x
  2. Step 2: Convert to fraction form
    54,936.52/75,815.40 = 31,065.28/x
  3. Step 3: Cross multiply
    54,936.52x = 75,815.40 × 31,065.28
  4. Step 4: Simplify right side
    54,936.52x = 2,355,226,629.31
  5. Step 5: Solve for x
    x = 2,355,226,629.31/54,936.52
  6. Step 6: Final answer
    x = 42,871.78

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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.