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Finding the Fourth Proportional to 54,963.55, 82,384.58 and 21,672.55

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Solution

The fourth proportional to 54,963.55, 82,384.58 and 21,672.55 is: 32,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,963.55 : 82,384.58 = 21,672.55 : x
  2. Step 2: Convert to fraction form
    54,963.55/82,384.58 = 21,672.55/x
  3. Step 3: Cross multiply
    54,963.55x = 82,384.58 × 21,672.55
  4. Step 4: Simplify right side
    54,963.55x = 1,785,483,820.92
  5. Step 5: Solve for x
    x = 1,785,483,820.92/54,963.55
  6. Step 6: Final answer
    x = 32,484.87

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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.