Home / 79,439.26-109,626.93-43,630

Finding the Fourth Proportional to 79,439.26, 109,626.93 and 43,630

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Solution

The fourth proportional to 79,439.26, 109,626.93 and 43,630 is: 60,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,439.26 : 109,626.93 = 43,630 : x
  2. Step 2: Convert to fraction form
    79,439.26/109,626.93 = 43,630/x
  3. Step 3: Cross multiply
    79,439.26x = 109,626.93 × 43,630
  4. Step 4: Simplify right side
    79,439.26x = 4,783,022,955.90
  5. Step 5: Solve for x
    x = 4,783,022,955.90/79,439.26
  6. Step 6: Final answer
    x = 60,209.81

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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.