Home / 77,739.03-107,285.31-43,750.79

Finding the Fourth Proportional to 77,739.03, 107,285.31 and 43,750.79

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Solution

The fourth proportional to 77,739.03, 107,285.31 and 43,750.79 is: 60,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,739.03 : 107,285.31 = 43,750.79 : x
  2. Step 2: Convert to fraction form
    77,739.03/107,285.31 = 43,750.79/x
  3. Step 3: Cross multiply
    77,739.03x = 107,285.31 × 43,750.79
  4. Step 4: Simplify right side
    77,739.03x = 4,693,817,067.89
  5. Step 5: Solve for x
    x = 4,693,817,067.89/77,739.03
  6. Step 6: Final answer
    x = 60,379.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.