Home / 74,531-111,769.44-40,822.06

Finding the Fourth Proportional to 74,531, 111,769.44 and 40,822.06

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Solution

The fourth proportional to 74,531, 111,769.44 and 40,822.06 is: 61,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531 : 111,769.44 = 40,822.06 : x
  2. Step 2: Convert to fraction form
    74,531/111,769.44 = 40,822.06/x
  3. Step 3: Cross multiply
    74,531x = 111,769.44 × 40,822.06
  4. Step 4: Simplify right side
    74,531x = 4,562,658,785.85
  5. Step 5: Solve for x
    x = 4,562,658,785.85/74,531
  6. Step 6: Final answer
    x = 61,218.27

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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.