Home / 49,912.24-68,880.40-28,405.07

Finding the Fourth Proportional to 49,912.24, 68,880.40 and 28,405.07

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Solution

The fourth proportional to 49,912.24, 68,880.40 and 28,405.07 is: 39,199.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,912.24 : 68,880.40 = 28,405.07 : x
  2. Step 2: Convert to fraction form
    49,912.24/68,880.40 = 28,405.07/x
  3. Step 3: Cross multiply
    49,912.24x = 68,880.40 × 28,405.07
  4. Step 4: Simplify right side
    49,912.24x = 1,956,552,441.60
  5. Step 5: Solve for x
    x = 1,956,552,441.60/49,912.24
  6. Step 6: Final answer
    x = 39,199.85

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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.