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Finding the Fourth Proportional to 53,583.70, 80,369.90 and 21,997.10

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Solution

The fourth proportional to 53,583.70, 80,369.90 and 21,997.10 is: 32,993.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,583.70 : 80,369.90 = 21,997.10 : x
  2. Step 2: Convert to fraction form
    53,583.70/80,369.90 = 21,997.10/x
  3. Step 3: Cross multiply
    53,583.70x = 80,369.90 × 21,997.10
  4. Step 4: Simplify right side
    53,583.70x = 1,767,904,727.29
  5. Step 5: Solve for x
    x = 1,767,904,727.29/53,583.70
  6. Step 6: Final answer
    x = 32,993.33

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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.