Home / 80,842.98-121,234.88-30,898.38

Finding the Fourth Proportional to 80,842.98, 121,234.88 and 30,898.38

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Solution

The fourth proportional to 80,842.98, 121,234.88 and 30,898.38 is: 46,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,842.98 : 121,234.88 = 30,898.38 : x
  2. Step 2: Convert to fraction form
    80,842.98/121,234.88 = 30,898.38/x
  3. Step 3: Cross multiply
    80,842.98x = 121,234.88 × 30,898.38
  4. Step 4: Simplify right side
    80,842.98x = 3,745,961,391.49
  5. Step 5: Solve for x
    x = 3,745,961,391.49/80,842.98
  6. Step 6: Final answer
    x = 46,336.26

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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.