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Finding the Fourth Proportional to 54,665.60, 81,998.40 and 49,827.20

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Solution

The fourth proportional to 54,665.60, 81,998.40 and 49,827.20 is: 74,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,665.60 : 81,998.40 = 49,827.20 : x
  2. Step 2: Convert to fraction form
    54,665.60/81,998.40 = 49,827.20/x
  3. Step 3: Cross multiply
    54,665.60x = 81,998.40 × 49,827.20
  4. Step 4: Simplify right side
    54,665.60x = 4,085,750,676.48
  5. Step 5: Solve for x
    x = 4,085,750,676.48/54,665.60
  6. Step 6: Final answer
    x = 74,740.80

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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.