Home / 115,096.31-172,644.09-51,842.40

Finding the Fourth Proportional to 115,096.31, 172,644.09 and 51,842.40

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Solution

The fourth proportional to 115,096.31, 172,644.09 and 51,842.40 is: 77,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,096.31 : 172,644.09 = 51,842.40 : x
  2. Step 2: Convert to fraction form
    115,096.31/172,644.09 = 51,842.40/x
  3. Step 3: Cross multiply
    115,096.31x = 172,644.09 × 51,842.40
  4. Step 4: Simplify right side
    115,096.31x = 8,950,283,108.20
  5. Step 5: Solve for x
    x = 8,950,283,108.20/115,096.31
  6. Step 6: Final answer
    x = 77,763.42

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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.