Home / 54,203.37-81,284.86-18,654.75

Finding the Fourth Proportional to 54,203.37, 81,284.86 and 18,654.75

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Solution

The fourth proportional to 54,203.37, 81,284.86 and 18,654.75 is: 27,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,203.37 : 81,284.86 = 18,654.75 : x
  2. Step 2: Convert to fraction form
    54,203.37/81,284.86 = 18,654.75/x
  3. Step 3: Cross multiply
    54,203.37x = 81,284.86 × 18,654.75
  4. Step 4: Simplify right side
    54,203.37x = 1,516,348,648.81
  5. Step 5: Solve for x
    x = 1,516,348,648.81/54,203.37
  6. Step 6: Final answer
    x = 27,975.17

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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.