Home / 84,379.36-126,469.68-34,428.28

Finding the Fourth Proportional to 84,379.36, 126,469.68 and 34,428.28

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Solution

The fourth proportional to 84,379.36, 126,469.68 and 34,428.28 is: 51,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,379.36 : 126,469.68 = 34,428.28 : x
  2. Step 2: Convert to fraction form
    84,379.36/126,469.68 = 34,428.28/x
  3. Step 3: Cross multiply
    84,379.36x = 126,469.68 × 34,428.28
  4. Step 4: Simplify right side
    84,379.36x = 4,354,133,554.55
  5. Step 5: Solve for x
    x = 4,354,133,554.55/84,379.36
  6. Step 6: Final answer
    x = 51,601.88

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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.