Home / 67,389.05-100,873.23-49,639.72

Finding the Fourth Proportional to 67,389.05, 100,873.23 and 49,639.72

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Solution

The fourth proportional to 67,389.05, 100,873.23 and 49,639.72 is: 74,304.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,389.05 : 100,873.23 = 49,639.72 : x
  2. Step 2: Convert to fraction form
    67,389.05/100,873.23 = 49,639.72/x
  3. Step 3: Cross multiply
    67,389.05x = 100,873.23 × 49,639.72
  4. Step 4: Simplify right side
    67,389.05x = 5,007,318,644.50
  5. Step 5: Solve for x
    x = 5,007,318,644.50/67,389.05
  6. Step 6: Final answer
    x = 74,304.63

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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.