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Finding the Fourth Proportional to 72,099.05, 108,105.27 and 29,928.22

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Solution

The fourth proportional to 72,099.05, 108,105.27 and 29,928.22 is: 44,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.05 : 108,105.27 = 29,928.22 : x
  2. Step 2: Convert to fraction form
    72,099.05/108,105.27 = 29,928.22/x
  3. Step 3: Cross multiply
    72,099.05x = 108,105.27 × 29,928.22
  4. Step 4: Simplify right side
    72,099.05x = 3,235,397,921.23
  5. Step 5: Solve for x
    x = 3,235,397,921.23/72,099.05
  6. Step 6: Final answer
    x = 44,874.35

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1.5x scale

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.