Home / 115,105.56-172,672.92-31,999.56

Finding the Fourth Proportional to 115,105.56, 172,672.92 and 31,999.56

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Solution

The fourth proportional to 115,105.56, 172,672.92 and 31,999.56 is: 48,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,105.56 : 172,672.92 = 31,999.56 : x
  2. Step 2: Convert to fraction form
    115,105.56/172,672.92 = 31,999.56/x
  3. Step 3: Cross multiply
    115,105.56x = 172,672.92 × 31,999.56
  4. Step 4: Simplify right side
    115,105.56x = 5,525,457,463.92
  5. Step 5: Solve for x
    x = 5,525,457,463.92/115,105.56
  6. Step 6: Final answer
    x = 48,003.39

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1.5x scale

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.