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Finding the Fourth Proportional to 71,897.54, 107,847 and 19,307.03

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Solution

The fourth proportional to 71,897.54, 107,847 and 19,307.03 is: 28,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,897.54 : 107,847 = 19,307.03 : x
  2. Step 2: Convert to fraction form
    71,897.54/107,847 = 19,307.03/x
  3. Step 3: Cross multiply
    71,897.54x = 107,847 × 19,307.03
  4. Step 4: Simplify right side
    71,897.54x = 2,082,205,264.41
  5. Step 5: Solve for x
    x = 2,082,205,264.41/71,897.54
  6. Step 6: Final answer
    x = 28,960.73

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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.