Home / 45,698.22-68,548.74-12,418.99

Finding the Fourth Proportional to 45,698.22, 68,548.74 and 12,418.99

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Solution

The fourth proportional to 45,698.22, 68,548.74 and 12,418.99 is: 18,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,698.22 : 68,548.74 = 12,418.99 : x
  2. Step 2: Convert to fraction form
    45,698.22/68,548.74 = 12,418.99/x
  3. Step 3: Cross multiply
    45,698.22x = 68,548.74 × 12,418.99
  4. Step 4: Simplify right side
    45,698.22x = 851,306,116.57
  5. Step 5: Solve for x
    x = 851,306,116.57/45,698.22
  6. Step 6: Final answer
    x = 18,628.87

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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.