Home / 45,770.91-68,645.30-12,491.15

Finding the Fourth Proportional to 45,770.91, 68,645.30 and 12,491.15

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Solution

The fourth proportional to 45,770.91, 68,645.30 and 12,491.15 is: 18,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,770.91 : 68,645.30 = 12,491.15 : x
  2. Step 2: Convert to fraction form
    45,770.91/68,645.30 = 12,491.15/x
  3. Step 3: Cross multiply
    45,770.91x = 68,645.30 × 12,491.15
  4. Step 4: Simplify right side
    45,770.91x = 857,458,333.41
  5. Step 5: Solve for x
    x = 857,458,333.41/45,770.91
  6. Step 6: Final answer
    x = 18,733.70

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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.