Home / 45,234.99-67,830.92-20,275.25

Finding the Fourth Proportional to 45,234.99, 67,830.92 and 20,275.25

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Solution

The fourth proportional to 45,234.99, 67,830.92 and 20,275.25 is: 30,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,234.99 : 67,830.92 = 20,275.25 : x
  2. Step 2: Convert to fraction form
    45,234.99/67,830.92 = 20,275.25/x
  3. Step 3: Cross multiply
    45,234.99x = 67,830.92 × 20,275.25
  4. Step 4: Simplify right side
    45,234.99x = 1,375,288,496.23
  5. Step 5: Solve for x
    x = 1,375,288,496.23/45,234.99
  6. Step 6: Final answer
    x = 30,403.20

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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.