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Finding the Fourth Proportional to 8,050.70, 12,072.45 and 3,118.70

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Solution

The fourth proportional to 8,050.70, 12,072.45 and 3,118.70 is: 4,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,050.70 : 12,072.45 = 3,118.70 : x
  2. Step 2: Convert to fraction form
    8,050.70/12,072.45 = 3,118.70/x
  3. Step 3: Cross multiply
    8,050.70x = 12,072.45 × 3,118.70
  4. Step 4: Simplify right side
    8,050.70x = 37,650,349.82
  5. Step 5: Solve for x
    x = 37,650,349.82/8,050.70
  6. Step 6: Final answer
    x = 4,676.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.