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Finding the Fourth Proportional to 52,704.90, 72,732.78 and 28,833.78

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Solution

The fourth proportional to 52,704.90, 72,732.78 and 28,833.78 is: 39,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,704.90 : 72,732.78 = 28,833.78 : x
  2. Step 2: Convert to fraction form
    52,704.90/72,732.78 = 28,833.78/x
  3. Step 3: Cross multiply
    52,704.90x = 72,732.78 × 28,833.78
  4. Step 4: Simplify right side
    52,704.90x = 2,097,160,977.31
  5. Step 5: Solve for x
    x = 2,097,160,977.31/52,704.90
  6. Step 6: Final answer
    x = 39,790.63

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