Home / 51,299.10-76,960.17-18,021.45

Finding the Fourth Proportional to 51,299.10, 76,960.17 and 18,021.45

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Solution

The fourth proportional to 51,299.10, 76,960.17 and 18,021.45 is: 27,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,299.10 : 76,960.17 = 18,021.45 : x
  2. Step 2: Convert to fraction form
    51,299.10/76,960.17 = 18,021.45/x
  3. Step 3: Cross multiply
    51,299.10x = 76,960.17 × 18,021.45
  4. Step 4: Simplify right side
    51,299.10x = 1,386,933,855.65
  5. Step 5: Solve for x
    x = 1,386,933,855.65/51,299.10
  6. Step 6: Final answer
    x = 27,036.22

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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.