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Finding the Fourth Proportional to 54,761.90, 82,164.45 and 21,476.30

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Solution

The fourth proportional to 54,761.90, 82,164.45 and 21,476.30 is: 32,222.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,761.90 : 82,164.45 = 21,476.30 : x
  2. Step 2: Convert to fraction form
    54,761.90/82,164.45 = 21,476.30/x
  3. Step 3: Cross multiply
    54,761.90x = 82,164.45 × 21,476.30
  4. Step 4: Simplify right side
    54,761.90x = 1,764,588,377.54
  5. Step 5: Solve for x
    x = 1,764,588,377.54/54,761.90
  6. Step 6: Final answer
    x = 32,222.92

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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.