Home / 54,415.96-81,631.73-16,979.38

Finding the Fourth Proportional to 54,415.96, 81,631.73 and 16,979.38

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Solution

The fourth proportional to 54,415.96, 81,631.73 and 16,979.38 is: 25,471.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,415.96 : 81,631.73 = 16,979.38 : x
  2. Step 2: Convert to fraction form
    54,415.96/81,631.73 = 16,979.38/x
  3. Step 3: Cross multiply
    54,415.96x = 81,631.73 × 16,979.38
  4. Step 4: Simplify right side
    54,415.96x = 1,386,056,002.10
  5. Step 5: Solve for x
    x = 1,386,056,002.10/54,415.96
  6. Step 6: Final answer
    x = 25,471.50

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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.