Home / 128,582.44-192,891.90-39,842.92

Finding the Fourth Proportional to 128,582.44, 192,891.90 and 39,842.92

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Solution

The fourth proportional to 128,582.44, 192,891.90 and 39,842.92 is: 59,770.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,582.44 : 192,891.90 = 39,842.92 : x
  2. Step 2: Convert to fraction form
    128,582.44/192,891.90 = 39,842.92/x
  3. Step 3: Cross multiply
    128,582.44x = 192,891.90 × 39,842.92
  4. Step 4: Simplify right side
    128,582.44x = 7,685,376,540.35
  5. Step 5: Solve for x
    x = 7,685,376,540.35/128,582.44
  6. Step 6: Final answer
    x = 59,770.03

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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.