Home / 45,518.48-68,287.80-19,245.68

Finding the Fourth Proportional to 45,518.48, 68,287.80 and 19,245.68

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Solution

The fourth proportional to 45,518.48, 68,287.80 and 19,245.68 is: 28,872.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,518.48 : 68,287.80 = 19,245.68 : x
  2. Step 2: Convert to fraction form
    45,518.48/68,287.80 = 19,245.68/x
  3. Step 3: Cross multiply
    45,518.48x = 68,287.80 × 19,245.68
  4. Step 4: Simplify right side
    45,518.48x = 1,314,245,146.70
  5. Step 5: Solve for x
    x = 1,314,245,146.70/45,518.48
  6. Step 6: Final answer
    x = 28,872.78

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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.