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Finding the Fourth Proportional to 54,923.60, 82,380.60 and 17,987.60

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Solution

The fourth proportional to 54,923.60, 82,380.60 and 17,987.60 is: 26,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,923.60 : 82,380.60 = 17,987.60 : x
  2. Step 2: Convert to fraction form
    54,923.60/82,380.60 = 17,987.60/x
  3. Step 3: Cross multiply
    54,923.60x = 82,380.60 × 17,987.60
  4. Step 4: Simplify right side
    54,923.60x = 1,481,829,280.56
  5. Step 5: Solve for x
    x = 1,481,829,280.56/54,923.60
  6. Step 6: Final answer
    x = 26,979.83

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1.5x scale

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.