Home / 54,918.72-82,384.48-19,874.88

Finding the Fourth Proportional to 54,918.72, 82,384.48 and 19,874.88

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Solution

The fourth proportional to 54,918.72, 82,384.48 and 19,874.88 is: 29,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,918.72 : 82,384.48 = 19,874.88 : x
  2. Step 2: Convert to fraction form
    54,918.72/82,384.48 = 19,874.88/x
  3. Step 3: Cross multiply
    54,918.72x = 82,384.48 × 19,874.88
  4. Step 4: Simplify right side
    54,918.72x = 1,637,381,653.86
  5. Step 5: Solve for x
    x = 1,637,381,653.86/54,918.72
  6. Step 6: Final answer
    x = 29,814.64

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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.