Home / 74,143.47-111,162.34-34,679.06

Finding the Fourth Proportional to 74,143.47, 111,162.34 and 34,679.06

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Solution

The fourth proportional to 74,143.47, 111,162.34 and 34,679.06 is: 51,993.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.47 : 111,162.34 = 34,679.06 : x
  2. Step 2: Convert to fraction form
    74,143.47/111,162.34 = 34,679.06/x
  3. Step 3: Cross multiply
    74,143.47x = 111,162.34 × 34,679.06
  4. Step 4: Simplify right side
    74,143.47x = 3,855,005,458.60
  5. Step 5: Solve for x
    x = 3,855,005,458.60/74,143.47
  6. Step 6: Final answer
    x = 51,993.86

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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.