Home / 54,133.10-81,162.69-28,836.39

Finding the Fourth Proportional to 54,133.10, 81,162.69 and 28,836.39

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Solution

The fourth proportional to 54,133.10, 81,162.69 and 28,836.39 is: 43,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,133.10 : 81,162.69 = 28,836.39 : x
  2. Step 2: Convert to fraction form
    54,133.10/81,162.69 = 28,836.39/x
  3. Step 3: Cross multiply
    54,133.10x = 81,162.69 × 28,836.39
  4. Step 4: Simplify right side
    54,133.10x = 2,340,438,982.29
  5. Step 5: Solve for x
    x = 2,340,438,982.29/54,133.10
  6. Step 6: Final answer
    x = 43,234.90

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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.