Home / 49,627.12-68,479.68-28,405.12

Finding the Fourth Proportional to 49,627.12, 68,479.68 and 28,405.12

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Solution

The fourth proportional to 49,627.12, 68,479.68 and 28,405.12 is: 39,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,627.12 : 68,479.68 = 28,405.12 : x
  2. Step 2: Convert to fraction form
    49,627.12/68,479.68 = 28,405.12/x
  3. Step 3: Cross multiply
    49,627.12x = 68,479.68 × 28,405.12
  4. Step 4: Simplify right side
    49,627.12x = 1,945,173,527.96
  5. Step 5: Solve for x
    x = 1,945,173,527.96/49,627.12
  6. Step 6: Final answer
    x = 39,195.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.