Home / 74,207.80-102,324.36-57,174.04

Finding the Fourth Proportional to 74,207.80, 102,324.36 and 57,174.04

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Solution

The fourth proportional to 74,207.80, 102,324.36 and 57,174.04 is: 78,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,207.80 : 102,324.36 = 57,174.04 : x
  2. Step 2: Convert to fraction form
    74,207.80/102,324.36 = 57,174.04/x
  3. Step 3: Cross multiply
    74,207.80x = 102,324.36 × 57,174.04
  4. Step 4: Simplify right side
    74,207.80x = 5,850,297,051.61
  5. Step 5: Solve for x
    x = 5,850,297,051.61/74,207.80
  6. Step 6: Final answer
    x = 78,836.69

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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.