Home / 66,926.78-100,340.23-40,266.52

Finding the Fourth Proportional to 66,926.78, 100,340.23 and 40,266.52

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Solution

The fourth proportional to 66,926.78, 100,340.23 and 40,266.52 is: 60,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,926.78 : 100,340.23 = 40,266.52 : x
  2. Step 2: Convert to fraction form
    66,926.78/100,340.23 = 40,266.52/x
  3. Step 3: Cross multiply
    66,926.78x = 100,340.23 × 40,266.52
  4. Step 4: Simplify right side
    66,926.78x = 4,040,351,878.10
  5. Step 5: Solve for x
    x = 4,040,351,878.10/66,926.78
  6. Step 6: Final answer
    x = 60,369.73

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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.