Home / 45,813.12-68,708.61-19,144.70

Finding the Fourth Proportional to 45,813.12, 68,708.61 and 19,144.70

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Solution

The fourth proportional to 45,813.12, 68,708.61 and 19,144.70 is: 28,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,813.12 : 68,708.61 = 19,144.70 : x
  2. Step 2: Convert to fraction form
    45,813.12/68,708.61 = 19,144.70/x
  3. Step 3: Cross multiply
    45,813.12x = 68,708.61 × 19,144.70
  4. Step 4: Simplify right side
    45,813.12x = 1,315,405,382.32
  5. Step 5: Solve for x
    x = 1,315,405,382.32/45,813.12
  6. Step 6: Final answer
    x = 28,712.42

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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.