Home / 47,783.56-71,676.60-12,723.28

Finding the Fourth Proportional to 47,783.56, 71,676.60 and 12,723.28

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Solution

The fourth proportional to 47,783.56, 71,676.60 and 12,723.28 is: 19,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,783.56 : 71,676.60 = 12,723.28 : x
  2. Step 2: Convert to fraction form
    47,783.56/71,676.60 = 12,723.28/x
  3. Step 3: Cross multiply
    47,783.56x = 71,676.60 × 12,723.28
  4. Step 4: Simplify right side
    47,783.56x = 911,961,451.25
  5. Step 5: Solve for x
    x = 911,961,451.25/47,783.56
  6. Step 6: Final answer
    x = 19,085.26

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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.