Home / 49,857.81-74,764.81-18,671.19

Finding the Fourth Proportional to 49,857.81, 74,764.81 and 18,671.19

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Solution

The fourth proportional to 49,857.81, 74,764.81 and 18,671.19 is: 27,998.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,857.81 : 74,764.81 = 18,671.19 : x
  2. Step 2: Convert to fraction form
    49,857.81/74,764.81 = 18,671.19/x
  3. Step 3: Cross multiply
    49,857.81x = 74,764.81 × 18,671.19
  4. Step 4: Simplify right side
    49,857.81x = 1,395,947,972.82
  5. Step 5: Solve for x
    x = 1,395,947,972.82/49,857.81
  6. Step 6: Final answer
    x = 27,998.58

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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.