Home / 45,289.89-67,943.39-20,329.34

Finding the Fourth Proportional to 45,289.89, 67,943.39 and 20,329.34

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Solution

The fourth proportional to 45,289.89, 67,943.39 and 20,329.34 is: 30,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,289.89 : 67,943.39 = 20,329.34 : x
  2. Step 2: Convert to fraction form
    45,289.89/67,943.39 = 20,329.34/x
  3. Step 3: Cross multiply
    45,289.89x = 67,943.39 × 20,329.34
  4. Step 4: Simplify right side
    45,289.89x = 1,381,243,834.70
  5. Step 5: Solve for x
    x = 1,381,243,834.70/45,289.89
  6. Step 6: Final answer
    x = 30,497.84

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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.