Home / 51,131.28-76,715.37-17,856.27

Finding the Fourth Proportional to 51,131.28, 76,715.37 and 17,856.27

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Solution

The fourth proportional to 51,131.28, 76,715.37 and 17,856.27 is: 26,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,131.28 : 76,715.37 = 17,856.27 : x
  2. Step 2: Convert to fraction form
    51,131.28/76,715.37 = 17,856.27/x
  3. Step 3: Cross multiply
    51,131.28x = 76,715.37 × 17,856.27
  4. Step 4: Simplify right side
    51,131.28x = 1,369,850,359.87
  5. Step 5: Solve for x
    x = 1,369,850,359.87/51,131.28
  6. Step 6: Final answer
    x = 26,790.85

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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.