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Finding the Fourth Proportional to 71,957.44, 107,942.48 and 19,365.76

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Solution

The fourth proportional to 71,957.44, 107,942.48 and 19,365.76 is: 29,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,957.44 : 107,942.48 = 19,365.76 : x
  2. Step 2: Convert to fraction form
    71,957.44/107,942.48 = 19,365.76/x
  3. Step 3: Cross multiply
    71,957.44x = 107,942.48 × 19,365.76
  4. Step 4: Simplify right side
    71,957.44x = 2,090,388,161.48
  5. Step 5: Solve for x
    x = 2,090,388,161.48/71,957.44
  6. Step 6: Final answer
    x = 29,050.34

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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.