Home / 74,173.23-111,258.63-18,013.80

Finding the Fourth Proportional to 74,173.23, 111,258.63 and 18,013.80

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Solution

The fourth proportional to 74,173.23, 111,258.63 and 18,013.80 is: 27,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,173.23 : 111,258.63 = 18,013.80 : x
  2. Step 2: Convert to fraction form
    74,173.23/111,258.63 = 18,013.80/x
  3. Step 3: Cross multiply
    74,173.23x = 111,258.63 × 18,013.80
  4. Step 4: Simplify right side
    74,173.23x = 2,004,190,709.09
  5. Step 5: Solve for x
    x = 2,004,190,709.09/74,173.23
  6. Step 6: Final answer
    x = 27,020.40

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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.