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Finding the Fourth Proportional to 72,054.08, 108,081.12 and 19,469.12

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Solution

The fourth proportional to 72,054.08, 108,081.12 and 19,469.12 is: 29,203.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,054.08 : 108,081.12 = 19,469.12 : x
  2. Step 2: Convert to fraction form
    72,054.08/108,081.12 = 19,469.12/x
  3. Step 3: Cross multiply
    72,054.08x = 108,081.12 × 19,469.12
  4. Step 4: Simplify right side
    72,054.08x = 2,104,244,295.01
  5. Step 5: Solve for x
    x = 2,104,244,295.01/72,054.08
  6. Step 6: Final answer
    x = 29,203.68

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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.