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Finding the Fourth Proportional to 54,780.63, 82,171.01 and 13,227.63

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Solution

The fourth proportional to 54,780.63, 82,171.01 and 13,227.63 is: 19,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,780.63 : 82,171.01 = 13,227.63 : x
  2. Step 2: Convert to fraction form
    54,780.63/82,171.01 = 13,227.63/x
  3. Step 3: Cross multiply
    54,780.63x = 82,171.01 × 13,227.63
  4. Step 4: Simplify right side
    54,780.63x = 1,086,927,717.01
  5. Step 5: Solve for x
    x = 1,086,927,717.01/54,780.63
  6. Step 6: Final answer
    x = 19,841.46

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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.