Home / 54,931.91-82,397.88-19,863.36

Finding the Fourth Proportional to 54,931.91, 82,397.88 and 19,863.36

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Solution

The fourth proportional to 54,931.91, 82,397.88 and 19,863.36 is: 29,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,931.91 : 82,397.88 = 19,863.36 : x
  2. Step 2: Convert to fraction form
    54,931.91/82,397.88 = 19,863.36/x
  3. Step 3: Cross multiply
    54,931.91x = 82,397.88 × 19,863.36
  4. Step 4: Simplify right side
    54,931.91x = 1,636,698,753.68
  5. Step 5: Solve for x
    x = 1,636,698,753.68/54,931.91
  6. Step 6: Final answer
    x = 29,795.05

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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.