Home / 84,163.14-126,177.93-42,021.54

Finding the Fourth Proportional to 84,163.14, 126,177.93 and 42,021.54

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Solution

The fourth proportional to 84,163.14, 126,177.93 and 42,021.54 is: 62,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,163.14 : 126,177.93 = 42,021.54 : x
  2. Step 2: Convert to fraction form
    84,163.14/126,177.93 = 42,021.54/x
  3. Step 3: Cross multiply
    84,163.14x = 126,177.93 × 42,021.54
  4. Step 4: Simplify right side
    84,163.14x = 5,302,190,932.61
  5. Step 5: Solve for x
    x = 5,302,190,932.61/84,163.14
  6. Step 6: Final answer
    x = 62,998.97

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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.