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Finding the Fourth Proportional to 54,460.65, 81,696.01 and 21,183.24

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Solution

The fourth proportional to 54,460.65, 81,696.01 and 21,183.24 is: 31,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,460.65 : 81,696.01 = 21,183.24 : x
  2. Step 2: Convert to fraction form
    54,460.65/81,696.01 = 21,183.24/x
  3. Step 3: Cross multiply
    54,460.65x = 81,696.01 × 21,183.24
  4. Step 4: Simplify right side
    54,460.65x = 1,730,586,186.87
  5. Step 5: Solve for x
    x = 1,730,586,186.87/54,460.65
  6. Step 6: Final answer
    x = 31,776.82

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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.