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Finding the Fourth Proportional to 45,367.56, 68,039.04 and 28,702.56

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Solution

The fourth proportional to 45,367.56, 68,039.04 and 28,702.56 is: 43,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,367.56 : 68,039.04 = 28,702.56 : x
  2. Step 2: Convert to fraction form
    45,367.56/68,039.04 = 28,702.56/x
  3. Step 3: Cross multiply
    45,367.56x = 68,039.04 × 28,702.56
  4. Step 4: Simplify right side
    45,367.56x = 1,952,894,627.94
  5. Step 5: Solve for x
    x = 1,952,894,627.94/45,367.56
  6. Step 6: Final answer
    x = 43,046.06

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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.