Home / 54,184.30-81,259.81-19,115.75

Finding the Fourth Proportional to 54,184.30, 81,259.81 and 19,115.75

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Solution

The fourth proportional to 54,184.30, 81,259.81 and 19,115.75 is: 28,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,184.30 : 81,259.81 = 19,115.75 : x
  2. Step 2: Convert to fraction form
    54,184.30/81,259.81 = 19,115.75/x
  3. Step 3: Cross multiply
    54,184.30x = 81,259.81 × 19,115.75
  4. Step 4: Simplify right side
    54,184.30x = 1,553,342,368.37
  5. Step 5: Solve for x
    x = 1,553,342,368.37/54,184.30
  6. Step 6: Final answer
    x = 28,667.76

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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.