Home / 76,299.03-114,438.83-20,143.76

Finding the Fourth Proportional to 76,299.03, 114,438.83 and 20,143.76

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Solution

The fourth proportional to 76,299.03, 114,438.83 and 20,143.76 is: 30,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,299.03 : 114,438.83 = 20,143.76 : x
  2. Step 2: Convert to fraction form
    76,299.03/114,438.83 = 20,143.76/x
  3. Step 3: Cross multiply
    76,299.03x = 114,438.83 × 20,143.76
  4. Step 4: Simplify right side
    76,299.03x = 2,305,227,653.29
  5. Step 5: Solve for x
    x = 2,305,227,653.29/76,299.03
  6. Step 6: Final answer
    x = 30,213.07

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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.