Home / 77,067.40-115,514.70-32,686.60

Finding the Fourth Proportional to 77,067.40, 115,514.70 and 32,686.60

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Solution

The fourth proportional to 77,067.40, 115,514.70 and 32,686.60 is: 48,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,067.40 : 115,514.70 = 32,686.60 : x
  2. Step 2: Convert to fraction form
    77,067.40/115,514.70 = 32,686.60/x
  3. Step 3: Cross multiply
    77,067.40x = 115,514.70 × 32,686.60
  4. Step 4: Simplify right side
    77,067.40x = 3,775,782,793.02
  5. Step 5: Solve for x
    x = 3,775,782,793.02/77,067.40
  6. Step 6: Final answer
    x = 48,993.26

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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.