Home / 76,505.76-114,732.72-29,109.60

Finding the Fourth Proportional to 76,505.76, 114,732.72 and 29,109.60

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Solution

The fourth proportional to 76,505.76, 114,732.72 and 29,109.60 is: 43,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,505.76 : 114,732.72 = 29,109.60 : x
  2. Step 2: Convert to fraction form
    76,505.76/114,732.72 = 29,109.60/x
  3. Step 3: Cross multiply
    76,505.76x = 114,732.72 × 29,109.60
  4. Step 4: Simplify right side
    76,505.76x = 3,339,823,586.11
  5. Step 5: Solve for x
    x = 3,339,823,586.11/76,505.76
  6. Step 6: Final answer
    x = 43,654.54

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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.