Home / 47,769.20-71,653.72-12,708.86

Finding the Fourth Proportional to 47,769.20, 71,653.72 and 12,708.86

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Solution

The fourth proportional to 47,769.20, 71,653.72 and 12,708.86 is: 19,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,769.20 : 71,653.72 = 12,708.86 : x
  2. Step 2: Convert to fraction form
    47,769.20/71,653.72 = 12,708.86/x
  3. Step 3: Cross multiply
    47,769.20x = 71,653.72 × 12,708.86
  4. Step 4: Simplify right side
    47,769.20x = 910,636,974.62
  5. Step 5: Solve for x
    x = 910,636,974.62/47,769.20
  6. Step 6: Final answer
    x = 19,063.27

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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.