Home / 45,149.90-67,713.30-18,514.67

Finding the Fourth Proportional to 45,149.90, 67,713.30 and 18,514.67

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Solution

The fourth proportional to 45,149.90, 67,713.30 and 18,514.67 is: 27,767.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,149.90 : 67,713.30 = 18,514.67 : x
  2. Step 2: Convert to fraction form
    45,149.90/67,713.30 = 18,514.67/x
  3. Step 3: Cross multiply
    45,149.90x = 67,713.30 × 18,514.67
  4. Step 4: Simplify right side
    45,149.90x = 1,253,689,065.54
  5. Step 5: Solve for x
    x = 1,253,689,065.54/45,149.90
  6. Step 6: Final answer
    x = 27,767.26

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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.