Home / 89,619.71-123,674.60-49,332.41

Finding the Fourth Proportional to 89,619.71, 123,674.60 and 49,332.41

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Solution

The fourth proportional to 89,619.71, 123,674.60 and 49,332.41 is: 68,078.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.71 : 123,674.60 = 49,332.41 : x
  2. Step 2: Convert to fraction form
    89,619.71/123,674.60 = 49,332.41/x
  3. Step 3: Cross multiply
    89,619.71x = 123,674.60 × 49,332.41
  4. Step 4: Simplify right side
    89,619.71x = 6,101,165,208.75
  5. Step 5: Solve for x
    x = 6,101,165,208.75/89,619.71
  6. Step 6: Final answer
    x = 68,078.39

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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.