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Finding the Fourth Proportional to 54,704.88, 82,057.32 and 42,243.09

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Solution

The fourth proportional to 54,704.88, 82,057.32 and 42,243.09 is: 63,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,704.88 : 82,057.32 = 42,243.09 : x
  2. Step 2: Convert to fraction form
    54,704.88/82,057.32 = 42,243.09/x
  3. Step 3: Cross multiply
    54,704.88x = 82,057.32 × 42,243.09
  4. Step 4: Simplify right side
    54,704.88x = 3,466,354,753.92
  5. Step 5: Solve for x
    x = 3,466,354,753.92/54,704.88
  6. Step 6: Final answer
    x = 63,364.64

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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.