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Finding the Fourth Proportional to 53,553.19, 80,311.25 and 21,954.28

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Solution

The fourth proportional to 53,553.19, 80,311.25 and 21,954.28 is: 32,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,553.19 : 80,311.25 = 21,954.28 : x
  2. Step 2: Convert to fraction form
    53,553.19/80,311.25 = 21,954.28/x
  3. Step 3: Cross multiply
    53,553.19x = 80,311.25 × 21,954.28
  4. Step 4: Simplify right side
    53,553.19x = 1,763,175,669.65
  5. Step 5: Solve for x
    x = 1,763,175,669.65/53,553.19
  6. Step 6: Final answer
    x = 32,923.82

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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.