Home / 49,815.90-74,678.94-18,203.52

Finding the Fourth Proportional to 49,815.90, 74,678.94 and 18,203.52

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Solution

The fourth proportional to 49,815.90, 74,678.94 and 18,203.52 is: 27,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,815.90 : 74,678.94 = 18,203.52 : x
  2. Step 2: Convert to fraction form
    49,815.90/74,678.94 = 18,203.52/x
  3. Step 3: Cross multiply
    49,815.90x = 74,678.94 × 18,203.52
  4. Step 4: Simplify right side
    49,815.90x = 1,359,419,577.87
  5. Step 5: Solve for x
    x = 1,359,419,577.87/49,815.90
  6. Step 6: Final answer
    x = 27,288.87

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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.