Home / 72,558.05-100,034.60-49,855.14

Finding the Fourth Proportional to 72,558.05, 100,034.60 and 49,855.14

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Solution

The fourth proportional to 72,558.05, 100,034.60 and 49,855.14 is: 68,734.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,558.05 : 100,034.60 = 49,855.14 : x
  2. Step 2: Convert to fraction form
    72,558.05/100,034.60 = 49,855.14/x
  3. Step 3: Cross multiply
    72,558.05x = 100,034.60 × 49,855.14
  4. Step 4: Simplify right side
    72,558.05x = 4,987,238,738.57
  5. Step 5: Solve for x
    x = 4,987,238,738.57/72,558.05
  6. Step 6: Final answer
    x = 68,734.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.