Home / 45,662.85-68,495.76-12,382.83

Finding the Fourth Proportional to 45,662.85, 68,495.76 and 12,382.83

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Solution

The fourth proportional to 45,662.85, 68,495.76 and 12,382.83 is: 18,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,662.85 : 68,495.76 = 12,382.83 : x
  2. Step 2: Convert to fraction form
    45,662.85/68,495.76 = 12,382.83/x
  3. Step 3: Cross multiply
    45,662.85x = 68,495.76 × 12,382.83
  4. Step 4: Simplify right side
    45,662.85x = 848,171,351.80
  5. Step 5: Solve for x
    x = 848,171,351.80/45,662.85
  6. Step 6: Final answer
    x = 18,574.65

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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.