Home / 80,800.37-121,208.83-30,922.42

Finding the Fourth Proportional to 80,800.37, 121,208.83 and 30,922.42

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Solution

The fourth proportional to 80,800.37, 121,208.83 and 30,922.42 is: 46,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,800.37 : 121,208.83 = 30,922.42 : x
  2. Step 2: Convert to fraction form
    80,800.37/121,208.83 = 30,922.42/x
  3. Step 3: Cross multiply
    80,800.37x = 121,208.83 × 30,922.42
  4. Step 4: Simplify right side
    80,800.37x = 3,748,070,348.97
  5. Step 5: Solve for x
    x = 3,748,070,348.97/80,800.37
  6. Step 6: Final answer
    x = 46,386.80

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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.