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Finding the Fourth Proportional to 54,792.20, 82,253.10 and 54,403.40

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Solution

The fourth proportional to 54,792.20, 82,253.10 and 54,403.40 is: 81,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,792.20 : 82,253.10 = 54,403.40 : x
  2. Step 2: Convert to fraction form
    54,792.20/82,253.10 = 54,403.40/x
  3. Step 3: Cross multiply
    54,792.20x = 82,253.10 × 54,403.40
  4. Step 4: Simplify right side
    54,792.20x = 4,474,848,300.54
  5. Step 5: Solve for x
    x = 4,474,848,300.54/54,792.20
  6. Step 6: Final answer
    x = 81,669.44

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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.