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Finding the Fourth Proportional to 72,466.68, 108,672.48 and 30,349.56

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Solution

The fourth proportional to 72,466.68, 108,672.48 and 30,349.56 is: 45,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,466.68 : 108,672.48 = 30,349.56 : x
  2. Step 2: Convert to fraction form
    72,466.68/108,672.48 = 30,349.56/x
  3. Step 3: Cross multiply
    72,466.68x = 108,672.48 × 30,349.56
  4. Step 4: Simplify right side
    72,466.68x = 3,298,161,952.11
  5. Step 5: Solve for x
    x = 3,298,161,952.11/72,466.68
  6. Step 6: Final answer
    x = 45,512.81

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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.