Home / 77,823.56-116,687.38-30,383.43

Finding the Fourth Proportional to 77,823.56, 116,687.38 and 30,383.43

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Solution

The fourth proportional to 77,823.56, 116,687.38 and 30,383.43 is: 45,556.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,823.56 : 116,687.38 = 30,383.43 : x
  2. Step 2: Convert to fraction form
    77,823.56/116,687.38 = 30,383.43/x
  3. Step 3: Cross multiply
    77,823.56x = 116,687.38 × 30,383.43
  4. Step 4: Simplify right side
    77,823.56x = 3,545,362,842.11
  5. Step 5: Solve for x
    x = 3,545,362,842.11/77,823.56
  6. Step 6: Final answer
    x = 45,556.42

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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.