Home / 71,721.72-107,452.80-40,093.92

Finding the Fourth Proportional to 71,721.72, 107,452.80 and 40,093.92

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Solution

The fourth proportional to 71,721.72, 107,452.80 and 40,093.92 is: 60,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,721.72 : 107,452.80 = 40,093.92 : x
  2. Step 2: Convert to fraction form
    71,721.72/107,452.80 = 40,093.92/x
  3. Step 3: Cross multiply
    71,721.72x = 107,452.80 × 40,093.92
  4. Step 4: Simplify right side
    71,721.72x = 4,308,203,966.98
  5. Step 5: Solve for x
    x = 4,308,203,966.98/71,721.72
  6. Step 6: Final answer
    x = 60,068.33

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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.