Home / 49,805.55-74,728.35-20,225.70

Finding the Fourth Proportional to 49,805.55, 74,728.35 and 20,225.70

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Solution

The fourth proportional to 49,805.55, 74,728.35 and 20,225.70 is: 30,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,805.55 : 74,728.35 = 20,225.70 : x
  2. Step 2: Convert to fraction form
    49,805.55/74,728.35 = 20,225.70/x
  3. Step 3: Cross multiply
    49,805.55x = 74,728.35 × 20,225.70
  4. Step 4: Simplify right side
    49,805.55x = 1,511,433,188.60
  5. Step 5: Solve for x
    x = 1,511,433,188.60/49,805.55
  6. Step 6: Final answer
    x = 30,346.68

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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.