Home / 77,738.03-107,283.93-43,749.79

Finding the Fourth Proportional to 77,738.03, 107,283.93 and 43,749.79

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Solution

The fourth proportional to 77,738.03, 107,283.93 and 43,749.79 is: 60,377.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,738.03 : 107,283.93 = 43,749.79 : x
  2. Step 2: Convert to fraction form
    77,738.03/107,283.93 = 43,749.79/x
  3. Step 3: Cross multiply
    77,738.03x = 107,283.93 × 43,749.79
  4. Step 4: Simplify right side
    77,738.03x = 4,693,648,975.60
  5. Step 5: Solve for x
    x = 4,693,648,975.60/77,738.03
  6. Step 6: Final answer
    x = 60,377.77

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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.