Home / 45,965.40-68,939.88-12,231.62

Finding the Fourth Proportional to 45,965.40, 68,939.88 and 12,231.62

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Solution

The fourth proportional to 45,965.40, 68,939.88 and 12,231.62 is: 18,345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,965.40 : 68,939.88 = 12,231.62 : x
  2. Step 2: Convert to fraction form
    45,965.40/68,939.88 = 12,231.62/x
  3. Step 3: Cross multiply
    45,965.40x = 68,939.88 × 12,231.62
  4. Step 4: Simplify right side
    45,965.40x = 843,246,415.01
  5. Step 5: Solve for x
    x = 843,246,415.01/45,965.40
  6. Step 6: Final answer
    x = 18,345.24

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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.