Home / 45,474.98-68,220.09-20,514.42

Finding the Fourth Proportional to 45,474.98, 68,220.09 and 20,514.42

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Solution

The fourth proportional to 45,474.98, 68,220.09 and 20,514.42 is: 30,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,474.98 : 68,220.09 = 20,514.42 : x
  2. Step 2: Convert to fraction form
    45,474.98/68,220.09 = 20,514.42/x
  3. Step 3: Cross multiply
    45,474.98x = 68,220.09 × 20,514.42
  4. Step 4: Simplify right side
    45,474.98x = 1,399,495,578.70
  5. Step 5: Solve for x
    x = 1,399,495,578.70/45,474.98
  6. Step 6: Final answer
    x = 30,775.07

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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.