Home / 51,299.67-76,931.09-21,719.61

Finding the Fourth Proportional to 51,299.67, 76,931.09 and 21,719.61

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Solution

The fourth proportional to 51,299.67, 76,931.09 and 21,719.61 is: 32,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,299.67 : 76,931.09 = 21,719.61 : x
  2. Step 2: Convert to fraction form
    51,299.67/76,931.09 = 21,719.61/x
  3. Step 3: Cross multiply
    51,299.67x = 76,931.09 × 21,719.61
  4. Step 4: Simplify right side
    51,299.67x = 1,670,913,163.08
  5. Step 5: Solve for x
    x = 1,670,913,163.08/51,299.67
  6. Step 6: Final answer
    x = 32,571.62

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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.