Home / 45,888.28-68,819.20-12,609.42

Finding the Fourth Proportional to 45,888.28, 68,819.20 and 12,609.42

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Solution

The fourth proportional to 45,888.28, 68,819.20 and 12,609.42 is: 18,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,888.28 : 68,819.20 = 12,609.42 : x
  2. Step 2: Convert to fraction form
    45,888.28/68,819.20 = 12,609.42/x
  3. Step 3: Cross multiply
    45,888.28x = 68,819.20 × 12,609.42
  4. Step 4: Simplify right side
    45,888.28x = 867,770,196.86
  5. Step 5: Solve for x
    x = 867,770,196.86/45,888.28
  6. Step 6: Final answer
    x = 18,910.50

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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.