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Finding the Fourth Proportional to 54,251.60, 81,312.60 and 27,942.80

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Solution

The fourth proportional to 54,251.60, 81,312.60 and 27,942.80 is: 41,880.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,251.60 : 81,312.60 = 27,942.80 : x
  2. Step 2: Convert to fraction form
    54,251.60/81,312.60 = 27,942.80/x
  3. Step 3: Cross multiply
    54,251.60x = 81,312.60 × 27,942.80
  4. Step 4: Simplify right side
    54,251.60x = 2,272,101,719.28
  5. Step 5: Solve for x
    x = 2,272,101,719.28/54,251.60
  6. Step 6: Final answer
    x = 41,880.82

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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.