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Finding the Fourth Proportional to 54,205.62, 81,203.22 and 39,948.20

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Solution

The fourth proportional to 54,205.62, 81,203.22 and 39,948.20 is: 59,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,205.62 : 81,203.22 = 39,948.20 : x
  2. Step 2: Convert to fraction form
    54,205.62/81,203.22 = 39,948.20/x
  3. Step 3: Cross multiply
    54,205.62x = 81,203.22 × 39,948.20
  4. Step 4: Simplify right side
    54,205.62x = 3,243,922,473.20
  5. Step 5: Solve for x
    x = 3,243,922,473.20/54,205.62
  6. Step 6: Final answer
    x = 59,844.76

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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.