Home / 45,623.70-68,439.87-18,964.08

Finding the Fourth Proportional to 45,623.70, 68,439.87 and 18,964.08

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Solution

The fourth proportional to 45,623.70, 68,439.87 and 18,964.08 is: 28,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,623.70 : 68,439.87 = 18,964.08 : x
  2. Step 2: Convert to fraction form
    45,623.70/68,439.87 = 18,964.08/x
  3. Step 3: Cross multiply
    45,623.70x = 68,439.87 × 18,964.08
  4. Step 4: Simplify right side
    45,623.70x = 1,297,899,169.87
  5. Step 5: Solve for x
    x = 1,297,899,169.87/45,623.70
  6. Step 6: Final answer
    x = 28,447.92

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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.