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Finding the Fourth Proportional to 55,497.38, 76,588.20 and 30,346.88

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Solution

The fourth proportional to 55,497.38, 76,588.20 and 30,346.88 is: 41,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,497.38 : 76,588.20 = 30,346.88 : x
  2. Step 2: Convert to fraction form
    55,497.38/76,588.20 = 30,346.88/x
  3. Step 3: Cross multiply
    55,497.38x = 76,588.20 × 30,346.88
  4. Step 4: Simplify right side
    55,497.38x = 2,324,212,531.88
  5. Step 5: Solve for x
    x = 2,324,212,531.88/55,497.38
  6. Step 6: Final answer
    x = 41,879.68

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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.