Home / 49,154.78-67,839.46-31,031.84

Finding the Fourth Proportional to 49,154.78, 67,839.46 and 31,031.84

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Solution

The fourth proportional to 49,154.78, 67,839.46 and 31,031.84 is: 42,827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,154.78 : 67,839.46 = 31,031.84 : x
  2. Step 2: Convert to fraction form
    49,154.78/67,839.46 = 31,031.84/x
  3. Step 3: Cross multiply
    49,154.78x = 67,839.46 × 31,031.84
  4. Step 4: Simplify right side
    49,154.78x = 2,105,183,268.41
  5. Step 5: Solve for x
    x = 2,105,183,268.41/49,154.78
  6. Step 6: Final answer
    x = 42,827.64

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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.