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Finding the Fourth Proportional to 54,924.72, 82,393.48 and 19,880.88

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Solution

The fourth proportional to 54,924.72, 82,393.48 and 19,880.88 is: 29,823.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,924.72 : 82,393.48 = 19,880.88 : x
  2. Step 2: Convert to fraction form
    54,924.72/82,393.48 = 19,880.88/x
  3. Step 3: Cross multiply
    54,924.72x = 82,393.48 × 19,880.88
  4. Step 4: Simplify right side
    54,924.72x = 1,638,054,888.66
  5. Step 5: Solve for x
    x = 1,638,054,888.66/54,924.72
  6. Step 6: Final answer
    x = 29,823.64

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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.