Home / 54,974.64-82,415.78-38,285.40

Finding the Fourth Proportional to 54,974.64, 82,415.78 and 38,285.40

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Solution

The fourth proportional to 54,974.64, 82,415.78 and 38,285.40 is: 57,395.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,974.64 : 82,415.78 = 38,285.40 : x
  2. Step 2: Convert to fraction form
    54,974.64/82,415.78 = 38,285.40/x
  3. Step 3: Cross multiply
    54,974.64x = 82,415.78 × 38,285.40
  4. Step 4: Simplify right side
    54,974.64x = 3,155,321,103.61
  5. Step 5: Solve for x
    x = 3,155,321,103.61/54,974.64
  6. Step 6: Final answer
    x = 57,395.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.