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Finding the Fourth Proportional to 72,185.50, 108,276.42 and 19,593.62

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Solution

The fourth proportional to 72,185.50, 108,276.42 and 19,593.62 is: 29,389.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,185.50 : 108,276.42 = 19,593.62 : x
  2. Step 2: Convert to fraction form
    72,185.50/108,276.42 = 19,593.62/x
  3. Step 3: Cross multiply
    72,185.50x = 108,276.42 × 19,593.62
  4. Step 4: Simplify right side
    72,185.50x = 2,121,527,028.44
  5. Step 5: Solve for x
    x = 2,121,527,028.44/72,185.50
  6. Step 6: Final answer
    x = 29,389.93

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Double scale
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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.