Home / 79,440.90-109,629.09-43,631.34

Finding the Fourth Proportional to 79,440.90, 109,629.09 and 43,631.34

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Solution

The fourth proportional to 79,440.90, 109,629.09 and 43,631.34 is: 60,211.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440.90 : 109,629.09 = 43,631.34 : x
  2. Step 2: Convert to fraction form
    79,440.90/109,629.09 = 43,631.34/x
  3. Step 3: Cross multiply
    79,440.90x = 109,629.09 × 43,631.34
  4. Step 4: Simplify right side
    79,440.90x = 4,783,264,099.68
  5. Step 5: Solve for x
    x = 4,783,264,099.68/79,440.90
  6. Step 6: Final answer
    x = 60,211.61

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1.5x scale

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.