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Finding the Fourth Proportional to 45,359.40, 68,049.90 and 19,050.60

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Solution

The fourth proportional to 45,359.40, 68,049.90 and 19,050.60 is: 28,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,359.40 : 68,049.90 = 19,050.60 : x
  2. Step 2: Convert to fraction form
    45,359.40/68,049.90 = 19,050.60/x
  3. Step 3: Cross multiply
    45,359.40x = 68,049.90 × 19,050.60
  4. Step 4: Simplify right side
    45,359.40x = 1,296,391,424.94
  5. Step 5: Solve for x
    x = 1,296,391,424.94/45,359.40
  6. Step 6: Final answer
    x = 28,580.44

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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.