Home / 71,630.38-107,467.04-28,913.82

Finding the Fourth Proportional to 71,630.38, 107,467.04 and 28,913.82

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Solution

The fourth proportional to 71,630.38, 107,467.04 and 28,913.82 is: 43,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,630.38 : 107,467.04 = 28,913.82 : x
  2. Step 2: Convert to fraction form
    71,630.38/107,467.04 = 28,913.82/x
  3. Step 3: Cross multiply
    71,630.38x = 107,467.04 × 28,913.82
  4. Step 4: Simplify right side
    71,630.38x = 3,107,281,968.59
  5. Step 5: Solve for x
    x = 3,107,281,968.59/71,630.38
  6. Step 6: Final answer
    x = 43,379.39

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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.