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Finding the Fourth Proportional to 71,089.95, 106,696.29 and 28,993.25

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Solution

The fourth proportional to 71,089.95, 106,696.29 and 28,993.25 is: 43,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089.95 : 106,696.29 = 28,993.25 : x
  2. Step 2: Convert to fraction form
    71,089.95/106,696.29 = 28,993.25/x
  3. Step 3: Cross multiply
    71,089.95x = 106,696.29 × 28,993.25
  4. Step 4: Simplify right side
    71,089.95x = 3,093,471,676.56
  5. Step 5: Solve for x
    x = 3,093,471,676.56/71,089.95
  6. Step 6: Final answer
    x = 43,514.89

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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.