Home / 84,234.85-126,243.21-34,256.89

Finding the Fourth Proportional to 84,234.85, 126,243.21 and 34,256.89

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Solution

The fourth proportional to 84,234.85, 126,243.21 and 34,256.89 is: 51,340.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,234.85 : 126,243.21 = 34,256.89 : x
  2. Step 2: Convert to fraction form
    84,234.85/126,243.21 = 34,256.89/x
  3. Step 3: Cross multiply
    84,234.85x = 126,243.21 × 34,256.89
  4. Step 4: Simplify right side
    84,234.85x = 4,324,699,319.20
  5. Step 5: Solve for x
    x = 4,324,699,319.20/84,234.85
  6. Step 6: Final answer
    x = 51,340.98

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1.5x scale

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.