Home / 74,173.08-111,258.81-18,013.89

Finding the Fourth Proportional to 74,173.08, 111,258.81 and 18,013.89

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Solution

The fourth proportional to 74,173.08, 111,258.81 and 18,013.89 is: 27,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,173.08 : 111,258.81 = 18,013.89 : x
  2. Step 2: Convert to fraction form
    74,173.08/111,258.81 = 18,013.89/x
  3. Step 3: Cross multiply
    74,173.08x = 111,258.81 × 18,013.89
  4. Step 4: Simplify right side
    74,173.08x = 2,004,203,964.87
  5. Step 5: Solve for x
    x = 2,004,203,964.87/74,173.08
  6. Step 6: Final answer
    x = 27,020.64

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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.