Home / 72,181.15-108,277.20-19,594.73

Finding the Fourth Proportional to 72,181.15, 108,277.20 and 19,594.73

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Solution

The fourth proportional to 72,181.15, 108,277.20 and 19,594.73 is: 29,393.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,181.15 : 108,277.20 = 19,594.73 : x
  2. Step 2: Convert to fraction form
    72,181.15/108,277.20 = 19,594.73/x
  3. Step 3: Cross multiply
    72,181.15x = 108,277.20 × 19,594.73
  4. Step 4: Simplify right side
    72,181.15x = 2,121,662,769.85
  5. Step 5: Solve for x
    x = 2,121,662,769.85/72,181.15
  6. Step 6: Final answer
    x = 29,393.59

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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.