Home / 69,305.35-103,942.34-31,829.39

Finding the Fourth Proportional to 69,305.35, 103,942.34 and 31,829.39

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Solution

The fourth proportional to 69,305.35, 103,942.34 and 31,829.39 is: 47,736.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,305.35 : 103,942.34 = 31,829.39 : x
  2. Step 2: Convert to fraction form
    69,305.35/103,942.34 = 31,829.39/x
  3. Step 3: Cross multiply
    69,305.35x = 103,942.34 × 31,829.39
  4. Step 4: Simplify right side
    69,305.35x = 3,308,421,378.08
  5. Step 5: Solve for x
    x = 3,308,421,378.08/69,305.35
  6. Step 6: Final answer
    x = 47,736.89

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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.