Home / 80,949.37-121,412.20-58,566.79

Finding the Fourth Proportional to 80,949.37, 121,412.20 and 58,566.79

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Solution

The fourth proportional to 80,949.37, 121,412.20 and 58,566.79 is: 87,841.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,949.37 : 121,412.20 = 58,566.79 : x
  2. Step 2: Convert to fraction form
    80,949.37/121,412.20 = 58,566.79/x
  3. Step 3: Cross multiply
    80,949.37x = 121,412.20 × 58,566.79
  4. Step 4: Simplify right side
    80,949.37x = 7,110,722,820.84
  5. Step 5: Solve for x
    x = 7,110,722,820.84/80,949.37
  6. Step 6: Final answer
    x = 87,841.61

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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.