Home / 72,410.24-108,524.64-39,128.96

Finding the Fourth Proportional to 72,410.24, 108,524.64 and 39,128.96

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Solution

The fourth proportional to 72,410.24, 108,524.64 and 39,128.96 is: 58,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,410.24 : 108,524.64 = 39,128.96 : x
  2. Step 2: Convert to fraction form
    72,410.24/108,524.64 = 39,128.96/x
  3. Step 3: Cross multiply
    72,410.24x = 108,524.64 × 39,128.96
  4. Step 4: Simplify right side
    72,410.24x = 4,246,456,297.57
  5. Step 5: Solve for x
    x = 4,246,456,297.57/72,410.24
  6. Step 6: Final answer
    x = 58,644.42

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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.