Home / 49,619.12-74,384.94-18,432.50

Finding the Fourth Proportional to 49,619.12, 74,384.94 and 18,432.50

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Solution

The fourth proportional to 49,619.12, 74,384.94 and 18,432.50 is: 27,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,619.12 : 74,384.94 = 18,432.50 : x
  2. Step 2: Convert to fraction form
    49,619.12/74,384.94 = 18,432.50/x
  3. Step 3: Cross multiply
    49,619.12x = 74,384.94 × 18,432.50
  4. Step 4: Simplify right side
    49,619.12x = 1,371,100,406.55
  5. Step 5: Solve for x
    x = 1,371,100,406.55/49,619.12
  6. Step 6: Final answer
    x = 27,632.50

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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.