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Finding the Fourth Proportional to 55,522.50, 76,622.28 and 30,372

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Solution

The fourth proportional to 55,522.50, 76,622.28 and 30,372 is: 41,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,522.50 : 76,622.28 = 30,372 : x
  2. Step 2: Convert to fraction form
    55,522.50/76,622.28 = 30,372/x
  3. Step 3: Cross multiply
    55,522.50x = 76,622.28 × 30,372
  4. Step 4: Simplify right side
    55,522.50x = 2,327,171,888.16
  5. Step 5: Solve for x
    x = 2,327,171,888.16/55,522.50
  6. Step 6: Final answer
    x = 41,914.03

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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.