Home / 54,890.65-82,359.87-21,634.89

Finding the Fourth Proportional to 54,890.65, 82,359.87 and 21,634.89

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Solution

The fourth proportional to 54,890.65, 82,359.87 and 21,634.89 is: 32,461.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,890.65 : 82,359.87 = 21,634.89 : x
  2. Step 2: Convert to fraction form
    54,890.65/82,359.87 = 21,634.89/x
  3. Step 3: Cross multiply
    54,890.65x = 82,359.87 × 21,634.89
  4. Step 4: Simplify right side
    54,890.65x = 1,781,846,727.86
  5. Step 5: Solve for x
    x = 1,781,846,727.86/54,890.65
  6. Step 6: Final answer
    x = 32,461.75

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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.