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Finding the Fourth Proportional to 51,230.31, 76,879.99 and 17,950.68

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Solution

The fourth proportional to 51,230.31, 76,879.99 and 17,950.68 is: 26,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,230.31 : 76,879.99 = 17,950.68 : x
  2. Step 2: Convert to fraction form
    51,230.31/76,879.99 = 17,950.68/x
  3. Step 3: Cross multiply
    51,230.31x = 76,879.99 × 17,950.68
  4. Step 4: Simplify right side
    51,230.31x = 1,380,048,098.89
  5. Step 5: Solve for x
    x = 1,380,048,098.89/51,230.31
  6. Step 6: Final answer
    x = 26,938.12

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1.5x scale

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.