Home / 51,217.29-76,861.85-21,231.99

Finding the Fourth Proportional to 51,217.29, 76,861.85 and 21,231.99

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Solution

The fourth proportional to 51,217.29, 76,861.85 and 21,231.99 is: 31,862.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,217.29 : 76,861.85 = 21,231.99 : x
  2. Step 2: Convert to fraction form
    51,217.29/76,861.85 = 21,231.99/x
  3. Step 3: Cross multiply
    51,217.29x = 76,861.85 × 21,231.99
  4. Step 4: Simplify right side
    51,217.29x = 1,631,929,924.42
  5. Step 5: Solve for x
    x = 1,631,929,924.42/51,217.29
  6. Step 6: Final answer
    x = 31,862.87

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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.