Home / 72,325.03-108,504.86-30,181.67

Finding the Fourth Proportional to 72,325.03, 108,504.86 and 30,181.67

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Solution

The fourth proportional to 72,325.03, 108,504.86 and 30,181.67 is: 45,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,325.03 : 108,504.86 = 30,181.67 : x
  2. Step 2: Convert to fraction form
    72,325.03/108,504.86 = 30,181.67/x
  3. Step 3: Cross multiply
    72,325.03x = 108,504.86 × 30,181.67
  4. Step 4: Simplify right side
    72,325.03x = 3,274,857,877.92
  5. Step 5: Solve for x
    x = 3,274,857,877.92/72,325.03
  6. Step 6: Final answer
    x = 45,279.73

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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.