Home / 54,990.89-82,338.69-28,640.27

Finding the Fourth Proportional to 54,990.89, 82,338.69 and 28,640.27

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Solution

The fourth proportional to 54,990.89, 82,338.69 and 28,640.27 is: 42,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,990.89 : 82,338.69 = 28,640.27 : x
  2. Step 2: Convert to fraction form
    54,990.89/82,338.69 = 28,640.27/x
  3. Step 3: Cross multiply
    54,990.89x = 82,338.69 × 28,640.27
  4. Step 4: Simplify right side
    54,990.89x = 2,358,201,901.35
  5. Step 5: Solve for x
    x = 2,358,201,901.35/54,990.89
  6. Step 6: Final answer
    x = 42,883.51

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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.