Home / 54,763.20-82,145.49-19,223.10

Finding the Fourth Proportional to 54,763.20, 82,145.49 and 19,223.10

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Solution

The fourth proportional to 54,763.20, 82,145.49 and 19,223.10 is: 28,834.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,763.20 : 82,145.49 = 19,223.10 : x
  2. Step 2: Convert to fraction form
    54,763.20/82,145.49 = 19,223.10/x
  3. Step 3: Cross multiply
    54,763.20x = 82,145.49 × 19,223.10
  4. Step 4: Simplify right side
    54,763.20x = 1,579,090,968.82
  5. Step 5: Solve for x
    x = 1,579,090,968.82/54,763.20
  6. Step 6: Final answer
    x = 28,834.89

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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.