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Finding the Fourth Proportional to 51,959.76, 71,704.08 and 40,640.82

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Solution

The fourth proportional to 51,959.76, 71,704.08 and 40,640.82 is: 56,084.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,959.76 : 71,704.08 = 40,640.82 : x
  2. Step 2: Convert to fraction form
    51,959.76/71,704.08 = 40,640.82/x
  3. Step 3: Cross multiply
    51,959.76x = 71,704.08 × 40,640.82
  4. Step 4: Simplify right side
    51,959.76x = 2,914,112,608.55
  5. Step 5: Solve for x
    x = 2,914,112,608.55/51,959.76
  6. Step 6: Final answer
    x = 56,084.03

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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.