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Finding the Fourth Proportional to 54,830.40, 82,245.60 and 21,551.55

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Solution

The fourth proportional to 54,830.40, 82,245.60 and 21,551.55 is: 32,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,830.40 : 82,245.60 = 21,551.55 : x
  2. Step 2: Convert to fraction form
    54,830.40/82,245.60 = 21,551.55/x
  3. Step 3: Cross multiply
    54,830.40x = 82,245.60 × 21,551.55
  4. Step 4: Simplify right side
    54,830.40x = 1,772,520,160.68
  5. Step 5: Solve for x
    x = 1,772,520,160.68/54,830.40
  6. Step 6: Final answer
    x = 32,327.33

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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.