Home / 81,584.52-122,304.30-28,987.08

Finding the Fourth Proportional to 81,584.52, 122,304.30 and 28,987.08

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Solution

The fourth proportional to 81,584.52, 122,304.30 and 28,987.08 is: 43,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,584.52 : 122,304.30 = 28,987.08 : x
  2. Step 2: Convert to fraction form
    81,584.52/122,304.30 = 28,987.08/x
  3. Step 3: Cross multiply
    81,584.52x = 122,304.30 × 28,987.08
  4. Step 4: Simplify right side
    81,584.52x = 3,545,244,528.44
  5. Step 5: Solve for x
    x = 3,545,244,528.44/81,584.52
  6. Step 6: Final answer
    x = 43,454.87

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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.