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Finding the Fourth Proportional to 72,523.44, 108,710.31 and 30,427.96

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Solution

The fourth proportional to 72,523.44, 108,710.31 and 30,427.96 is: 45,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,523.44 : 108,710.31 = 30,427.96 : x
  2. Step 2: Convert to fraction form
    72,523.44/108,710.31 = 30,427.96/x
  3. Step 3: Cross multiply
    72,523.44x = 108,710.31 × 30,427.96
  4. Step 4: Simplify right side
    72,523.44x = 3,307,832,964.27
  5. Step 5: Solve for x
    x = 3,307,832,964.27/72,523.44
  6. Step 6: Final answer
    x = 45,610.54

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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.