Home / 74,589.40-102,880.96-49,087.64

Finding the Fourth Proportional to 74,589.40, 102,880.96 and 49,087.64

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Solution

The fourth proportional to 74,589.40, 102,880.96 and 49,087.64 is: 67,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,589.40 : 102,880.96 = 49,087.64 : x
  2. Step 2: Convert to fraction form
    74,589.40/102,880.96 = 49,087.64/x
  3. Step 3: Cross multiply
    74,589.40x = 102,880.96 × 49,087.64
  4. Step 4: Simplify right side
    74,589.40x = 5,050,183,527.33
  5. Step 5: Solve for x
    x = 5,050,183,527.33/74,589.40
  6. Step 6: Final answer
    x = 67,706.45

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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.