Home / 72,951.41-109,383.30-28,525.23

Finding the Fourth Proportional to 72,951.41, 109,383.30 and 28,525.23

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Solution

The fourth proportional to 72,951.41, 109,383.30 and 28,525.23 is: 42,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,951.41 : 109,383.30 = 28,525.23 : x
  2. Step 2: Convert to fraction form
    72,951.41/109,383.30 = 28,525.23/x
  3. Step 3: Cross multiply
    72,951.41x = 109,383.30 × 28,525.23
  4. Step 4: Simplify right side
    72,951.41x = 3,120,183,790.66
  5. Step 5: Solve for x
    x = 3,120,183,790.66/72,951.41
  6. Step 6: Final answer
    x = 42,770.72

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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.