Home / 79,439.85-109,628.88-43,630.62

Finding the Fourth Proportional to 79,439.85, 109,628.88 and 43,630.62

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Solution

The fourth proportional to 79,439.85, 109,628.88 and 43,630.62 is: 60,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,439.85 : 109,628.88 = 43,630.62 : x
  2. Step 2: Convert to fraction form
    79,439.85/109,628.88 = 43,630.62/x
  3. Step 3: Cross multiply
    79,439.85x = 109,628.88 × 43,630.62
  4. Step 4: Simplify right side
    79,439.85x = 4,783,176,004.31
  5. Step 5: Solve for x
    x = 4,783,176,004.31/79,439.85
  6. Step 6: Final answer
    x = 60,211.29

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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.