Home / 95,455.31-131,712.48-55,172.79

Finding the Fourth Proportional to 95,455.31, 131,712.48 and 55,172.79

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Solution

The fourth proportional to 95,455.31, 131,712.48 and 55,172.79 is: 76,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,455.31 : 131,712.48 = 55,172.79 : x
  2. Step 2: Convert to fraction form
    95,455.31/131,712.48 = 55,172.79/x
  3. Step 3: Cross multiply
    95,455.31x = 131,712.48 × 55,172.79
  4. Step 4: Simplify right side
    95,455.31x = 7,266,944,999.42
  5. Step 5: Solve for x
    x = 7,266,944,999.42/95,455.31
  6. Step 6: Final answer
    x = 76,129.29

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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.