Home / 51,789.98-77,668.50-16,721.48

Finding the Fourth Proportional to 51,789.98, 77,668.50 and 16,721.48

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Solution

The fourth proportional to 51,789.98, 77,668.50 and 16,721.48 is: 25,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,789.98 : 77,668.50 = 16,721.48 : x
  2. Step 2: Convert to fraction form
    51,789.98/77,668.50 = 16,721.48/x
  3. Step 3: Cross multiply
    51,789.98x = 77,668.50 × 16,721.48
  4. Step 4: Simplify right side
    51,789.98x = 1,298,732,269.38
  5. Step 5: Solve for x
    x = 1,298,732,269.38/51,789.98
  6. Step 6: Final answer
    x = 25,076.90

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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.