Home / 74,506.69-102,820.46-40,515.85

Finding the Fourth Proportional to 74,506.69, 102,820.46 and 40,515.85

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Solution

The fourth proportional to 74,506.69, 102,820.46 and 40,515.85 is: 55,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,506.69 : 102,820.46 = 40,515.85 : x
  2. Step 2: Convert to fraction form
    74,506.69/102,820.46 = 40,515.85/x
  3. Step 3: Cross multiply
    74,506.69x = 102,820.46 × 40,515.85
  4. Step 4: Simplify right side
    74,506.69x = 4,165,858,260.24
  5. Step 5: Solve for x
    x = 4,165,858,260.24/74,506.69
  6. Step 6: Final answer
    x = 55,912.54

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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.