Home / 74,290.05-102,519.67-40,298.45

Finding the Fourth Proportional to 74,290.05, 102,519.67 and 40,298.45

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Solution

The fourth proportional to 74,290.05, 102,519.67 and 40,298.45 is: 55,611.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,290.05 : 102,519.67 = 40,298.45 : x
  2. Step 2: Convert to fraction form
    74,290.05/102,519.67 = 40,298.45/x
  3. Step 3: Cross multiply
    74,290.05x = 102,519.67 × 40,298.45
  4. Step 4: Simplify right side
    74,290.05x = 4,131,383,951.06
  5. Step 5: Solve for x
    x = 4,131,383,951.06/74,290.05
  6. Step 6: Final answer
    x = 55,611.54

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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.