Home / 55,045.20-75,962.69-31,174.09

Finding the Fourth Proportional to 55,045.20, 75,962.69 and 31,174.09

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Solution

The fourth proportional to 55,045.20, 75,962.69 and 31,174.09 is: 43,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,045.20 : 75,962.69 = 31,174.09 : x
  2. Step 2: Convert to fraction form
    55,045.20/75,962.69 = 31,174.09/x
  3. Step 3: Cross multiply
    55,045.20x = 75,962.69 × 31,174.09
  4. Step 4: Simplify right side
    55,045.20x = 2,368,067,734.70
  5. Step 5: Solve for x
    x = 2,368,067,734.70/55,045.20
  6. Step 6: Final answer
    x = 43,020.42

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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.