Home / 55,115.92-76,065.92-31,240.04

Finding the Fourth Proportional to 55,115.92, 76,065.92 and 31,240.04

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Solution

The fourth proportional to 55,115.92, 76,065.92 and 31,240.04 is: 43,114.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,115.92 : 76,065.92 = 31,240.04 : x
  2. Step 2: Convert to fraction form
    55,115.92/76,065.92 = 31,240.04/x
  3. Step 3: Cross multiply
    55,115.92x = 76,065.92 × 31,240.04
  4. Step 4: Simplify right side
    55,115.92x = 2,376,302,383.44
  5. Step 5: Solve for x
    x = 2,376,302,383.44/55,115.92
  6. Step 6: Final answer
    x = 43,114.63

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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.