Home / 72,236.08-108,270.96-27,840.64

Finding the Fourth Proportional to 72,236.08, 108,270.96 and 27,840.64

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Solution

The fourth proportional to 72,236.08, 108,270.96 and 27,840.64 is: 41,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,236.08 : 108,270.96 = 27,840.64 : x
  2. Step 2: Convert to fraction form
    72,236.08/108,270.96 = 27,840.64/x
  3. Step 3: Cross multiply
    72,236.08x = 108,270.96 × 27,840.64
  4. Step 4: Simplify right side
    72,236.08x = 3,014,332,819.81
  5. Step 5: Solve for x
    x = 3,014,332,819.81/72,236.08
  6. Step 6: Final answer
    x = 41,728.91

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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.