Home / 54,991.91-82,487.83-19,931.51

Finding the Fourth Proportional to 54,991.91, 82,487.83 and 19,931.51

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Solution

The fourth proportional to 54,991.91, 82,487.83 and 19,931.51 is: 29,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,991.91 : 82,487.83 = 19,931.51 : x
  2. Step 2: Convert to fraction form
    54,991.91/82,487.83 = 19,931.51/x
  3. Step 3: Cross multiply
    54,991.91x = 82,487.83 × 19,931.51
  4. Step 4: Simplify right side
    54,991.91x = 1,644,106,546.26
  5. Step 5: Solve for x
    x = 1,644,106,546.26/54,991.91
  6. Step 6: Final answer
    x = 29,897.25

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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.