Home / 76,815.56-115,195.60-29,443.96

Finding the Fourth Proportional to 76,815.56, 115,195.60 and 29,443.96

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Solution

The fourth proportional to 76,815.56, 115,195.60 and 29,443.96 is: 44,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,815.56 : 115,195.60 = 29,443.96 : x
  2. Step 2: Convert to fraction form
    76,815.56/115,195.60 = 29,443.96/x
  3. Step 3: Cross multiply
    76,815.56x = 115,195.60 × 29,443.96
  4. Step 4: Simplify right side
    76,815.56x = 3,391,814,638.58
  5. Step 5: Solve for x
    x = 3,391,814,638.58/76,815.56
  6. Step 6: Final answer
    x = 44,155.31

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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.