Home / 71,629.94-107,466.39-28,913.39

Finding the Fourth Proportional to 71,629.94, 107,466.39 and 28,913.39

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Solution

The fourth proportional to 71,629.94, 107,466.39 and 28,913.39 is: 43,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,629.94 : 107,466.39 = 28,913.39 : x
  2. Step 2: Convert to fraction form
    71,629.94/107,466.39 = 28,913.39/x
  3. Step 3: Cross multiply
    71,629.94x = 107,466.39 × 28,913.39
  4. Step 4: Simplify right side
    71,629.94x = 3,107,217,000.20
  5. Step 5: Solve for x
    x = 3,107,217,000.20/71,629.94
  6. Step 6: Final answer
    x = 43,378.75

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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.