Home / 79,210.20-109,308.39-43,399.45

Finding the Fourth Proportional to 79,210.20, 109,308.39 and 43,399.45

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Solution

The fourth proportional to 79,210.20, 109,308.39 and 43,399.45 is: 59,890.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,210.20 : 109,308.39 = 43,399.45 : x
  2. Step 2: Convert to fraction form
    79,210.20/109,308.39 = 43,399.45/x
  3. Step 3: Cross multiply
    79,210.20x = 109,308.39 × 43,399.45
  4. Step 4: Simplify right side
    79,210.20x = 4,743,923,365.41
  5. Step 5: Solve for x
    x = 4,743,923,365.41/79,210.20
  6. Step 6: Final answer
    x = 59,890.31

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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.