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Finding the Fourth Proportional to 79,313.70, 118,736.81 and 69,472.20

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Solution

The fourth proportional to 79,313.70, 118,736.81 and 69,472.20 is: 104,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,313.70 : 118,736.81 = 69,472.20 : x
  2. Step 2: Convert to fraction form
    79,313.70/118,736.81 = 69,472.20/x
  3. Step 3: Cross multiply
    79,313.70x = 118,736.81 × 69,472.20
  4. Step 4: Simplify right side
    79,313.70x = 8,248,907,064.32
  5. Step 5: Solve for x
    x = 8,248,907,064.32/79,313.70
  6. Step 6: Final answer
    x = 104,003.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.