Home / 75,511.54-104,182.84-49,662.72

Finding the Fourth Proportional to 75,511.54, 104,182.84 and 49,662.72

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Solution

The fourth proportional to 75,511.54, 104,182.84 and 49,662.72 is: 68,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,511.54 : 104,182.84 = 49,662.72 : x
  2. Step 2: Convert to fraction form
    75,511.54/104,182.84 = 49,662.72/x
  3. Step 3: Cross multiply
    75,511.54x = 104,182.84 × 49,662.72
  4. Step 4: Simplify right side
    75,511.54x = 5,174,002,690.81
  5. Step 5: Solve for x
    x = 5,174,002,690.81/75,511.54
  6. Step 6: Final answer
    x = 68,519.37

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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.