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Finding the Fourth Proportional to 72,074.36, 108,150.32 and 29,983.49

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Solution

The fourth proportional to 72,074.36, 108,150.32 and 29,983.49 is: 44,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,074.36 : 108,150.32 = 29,983.49 : x
  2. Step 2: Convert to fraction form
    72,074.36/108,150.32 = 29,983.49/x
  3. Step 3: Cross multiply
    72,074.36x = 108,150.32 × 29,983.49
  4. Step 4: Simplify right side
    72,074.36x = 3,242,724,383.55
  5. Step 5: Solve for x
    x = 3,242,724,383.55/72,074.36
  6. Step 6: Final answer
    x = 44,991.37

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Double scale
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Similar ratio
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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.