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Finding the Fourth Proportional to 63,551.30, 87,664.36 and 39,636.46

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Solution

The fourth proportional to 63,551.30, 87,664.36 and 39,636.46 is: 54,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,551.30 : 87,664.36 = 39,636.46 : x
  2. Step 2: Convert to fraction form
    63,551.30/87,664.36 = 39,636.46/x
  3. Step 3: Cross multiply
    63,551.30x = 87,664.36 × 39,636.46
  4. Step 4: Simplify right side
    63,551.30x = 3,474,704,262.06
  5. Step 5: Solve for x
    x = 3,474,704,262.06/63,551.30
  6. Step 6: Final answer
    x = 54,675.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.