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Finding the Fourth Proportional to 54,020.60, 80,858.10 and 38,468.60

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Solution

The fourth proportional to 54,020.60, 80,858.10 and 38,468.60 is: 57,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,020.60 : 80,858.10 = 38,468.60 : x
  2. Step 2: Convert to fraction form
    54,020.60/80,858.10 = 38,468.60/x
  3. Step 3: Cross multiply
    54,020.60x = 80,858.10 × 38,468.60
  4. Step 4: Simplify right side
    54,020.60x = 3,110,497,905.66
  5. Step 5: Solve for x
    x = 3,110,497,905.66/54,020.60
  6. Step 6: Final answer
    x = 57,579.85

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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.