Home / 71,545.78-107,357.55-30,021.94

Finding the Fourth Proportional to 71,545.78, 107,357.55 and 30,021.94

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Solution

The fourth proportional to 71,545.78, 107,357.55 and 30,021.94 is: 45,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,545.78 : 107,357.55 = 30,021.94 : x
  2. Step 2: Convert to fraction form
    71,545.78/107,357.55 = 30,021.94/x
  3. Step 3: Cross multiply
    71,545.78x = 107,357.55 × 30,021.94
  4. Step 4: Simplify right side
    71,545.78x = 3,223,081,924.65
  5. Step 5: Solve for x
    x = 3,223,081,924.65/71,545.78
  6. Step 6: Final answer
    x = 45,049.22

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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.