Home / 55,521.92-76,625.52-30,375.20

Finding the Fourth Proportional to 55,521.92, 76,625.52 and 30,375.20

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Solution

The fourth proportional to 55,521.92, 76,625.52 and 30,375.20 is: 41,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,521.92 : 76,625.52 = 30,375.20 : x
  2. Step 2: Convert to fraction form
    55,521.92/76,625.52 = 30,375.20/x
  3. Step 3: Cross multiply
    55,521.92x = 76,625.52 × 30,375.20
  4. Step 4: Simplify right side
    55,521.92x = 2,327,515,495.10
  5. Step 5: Solve for x
    x = 2,327,515,495.10/55,521.92
  6. Step 6: Final answer
    x = 41,920.66

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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.