Home / 79,440.85-109,630.26-43,631.62

Finding the Fourth Proportional to 79,440.85, 109,630.26 and 43,631.62

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Solution

The fourth proportional to 79,440.85, 109,630.26 and 43,631.62 is: 60,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440.85 : 109,630.26 = 43,631.62 : x
  2. Step 2: Convert to fraction form
    79,440.85/109,630.26 = 43,631.62/x
  3. Step 3: Cross multiply
    79,440.85x = 109,630.26 × 43,631.62
  4. Step 4: Simplify right side
    79,440.85x = 4,783,345,844.82
  5. Step 5: Solve for x
    x = 4,783,345,844.82/79,440.85
  6. Step 6: Final answer
    x = 60,212.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.