Home / 74,560.42-111,879.52-30,219.94

Finding the Fourth Proportional to 74,560.42, 111,879.52 and 30,219.94

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Solution

The fourth proportional to 74,560.42, 111,879.52 and 30,219.94 is: 45,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,560.42 : 111,879.52 = 30,219.94 : x
  2. Step 2: Convert to fraction form
    74,560.42/111,879.52 = 30,219.94/x
  3. Step 3: Cross multiply
    74,560.42x = 111,879.52 × 30,219.94
  4. Step 4: Simplify right side
    74,560.42x = 3,380,992,381.63
  5. Step 5: Solve for x
    x = 3,380,992,381.63/74,560.42
  6. Step 6: Final answer
    x = 45,345.67

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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.