Home / 84,433.44-126,650.12-31,830.62

Finding the Fourth Proportional to 84,433.44, 126,650.12 and 31,830.62

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Solution

The fourth proportional to 84,433.44, 126,650.12 and 31,830.62 is: 47,745.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,433.44 : 126,650.12 = 31,830.62 : x
  2. Step 2: Convert to fraction form
    84,433.44/126,650.12 = 31,830.62/x
  3. Step 3: Cross multiply
    84,433.44x = 126,650.12 × 31,830.62
  4. Step 4: Simplify right side
    84,433.44x = 4,031,351,842.67
  5. Step 5: Solve for x
    x = 4,031,351,842.67/84,433.44
  6. Step 6: Final answer
    x = 47,745.91

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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.