Home / 74,121.15-111,202.51-29,779.04

Finding the Fourth Proportional to 74,121.15, 111,202.51 and 29,779.04

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Solution

The fourth proportional to 74,121.15, 111,202.51 and 29,779.04 is: 44,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,121.15 : 111,202.51 = 29,779.04 : x
  2. Step 2: Convert to fraction form
    74,121.15/111,202.51 = 29,779.04/x
  3. Step 3: Cross multiply
    74,121.15x = 111,202.51 × 29,779.04
  4. Step 4: Simplify right side
    74,121.15x = 3,311,503,993.39
  5. Step 5: Solve for x
    x = 3,311,503,993.39/74,121.15
  6. Step 6: Final answer
    x = 44,676.91

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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.