Home / 54,677.91-81,987.71-28,317.27

Finding the Fourth Proportional to 54,677.91, 81,987.71 and 28,317.27

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Solution

The fourth proportional to 54,677.91, 81,987.71 and 28,317.27 is: 42,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,677.91 : 81,987.71 = 28,317.27 : x
  2. Step 2: Convert to fraction form
    54,677.91/81,987.71 = 28,317.27/x
  3. Step 3: Cross multiply
    54,677.91x = 81,987.71 × 28,317.27
  4. Step 4: Simplify right side
    54,677.91x = 2,321,667,979.17
  5. Step 5: Solve for x
    x = 2,321,667,979.17/54,677.91
  6. Step 6: Final answer
    x = 42,460.80

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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.