Home / 45,121.01-67,680.11-21,445.61

Finding the Fourth Proportional to 45,121.01, 67,680.11 and 21,445.61

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Solution

The fourth proportional to 45,121.01, 67,680.11 and 21,445.61 is: 32,167.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.01 : 67,680.11 = 21,445.61 : x
  2. Step 2: Convert to fraction form
    45,121.01/67,680.11 = 21,445.61/x
  3. Step 3: Cross multiply
    45,121.01x = 67,680.11 × 21,445.61
  4. Step 4: Simplify right side
    45,121.01x = 1,451,440,959.03
  5. Step 5: Solve for x
    x = 1,451,440,959.03/45,121.01
  6. Step 6: Final answer
    x = 32,167.74

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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.