Home / 76,601.45-114,912.94-20,443.39

Finding the Fourth Proportional to 76,601.45, 114,912.94 and 20,443.39

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Solution

The fourth proportional to 76,601.45, 114,912.94 and 20,443.39 is: 30,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,601.45 : 114,912.94 = 20,443.39 : x
  2. Step 2: Convert to fraction form
    76,601.45/114,912.94 = 20,443.39/x
  3. Step 3: Cross multiply
    76,601.45x = 114,912.94 × 20,443.39
  4. Step 4: Simplify right side
    76,601.45x = 2,349,209,710.08
  5. Step 5: Solve for x
    x = 2,349,209,710.08/76,601.45
  6. Step 6: Final answer
    x = 30,667.95

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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.