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Finding the Fourth Proportional to 76,485.70, 114,684 and 29,683.90

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Solution

The fourth proportional to 76,485.70, 114,684 and 29,683.90 is: 44,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,485.70 : 114,684 = 29,683.90 : x
  2. Step 2: Convert to fraction form
    76,485.70/114,684 = 29,683.90/x
  3. Step 3: Cross multiply
    76,485.70x = 114,684 × 29,683.90
  4. Step 4: Simplify right side
    76,485.70x = 3,404,268,387.60
  5. Step 5: Solve for x
    x = 3,404,268,387.60/76,485.70
  6. Step 6: Final answer
    x = 44,508.56

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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.