Home / 128,514.60-192,779.46-49,629.24

Finding the Fourth Proportional to 128,514.60, 192,779.46 and 49,629.24

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Solution

The fourth proportional to 128,514.60, 192,779.46 and 49,629.24 is: 74,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,514.60 : 192,779.46 = 49,629.24 : x
  2. Step 2: Convert to fraction form
    128,514.60/192,779.46 = 49,629.24/x
  3. Step 3: Cross multiply
    128,514.60x = 192,779.46 × 49,629.24
  4. Step 4: Simplify right side
    128,514.60x = 9,567,498,087.41
  5. Step 5: Solve for x
    x = 9,567,498,087.41/128,514.60
  6. Step 6: Final answer
    x = 74,446.78

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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.