Home / 45,328.70-68,016.06-20,363.69

Finding the Fourth Proportional to 45,328.70, 68,016.06 and 20,363.69

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Solution

The fourth proportional to 45,328.70, 68,016.06 and 20,363.69 is: 30,555.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,328.70 : 68,016.06 = 20,363.69 : x
  2. Step 2: Convert to fraction form
    45,328.70/68,016.06 = 20,363.69/x
  3. Step 3: Cross multiply
    45,328.70x = 68,016.06 × 20,363.69
  4. Step 4: Simplify right side
    45,328.70x = 1,385,057,620.78
  5. Step 5: Solve for x
    x = 1,385,057,620.78/45,328.70
  6. Step 6: Final answer
    x = 30,555.87

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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.