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Finding the Fourth Proportional to 85,525.56, 117,996.36 and 55,349

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Solution

The fourth proportional to 85,525.56, 117,996.36 and 55,349 is: 76,362.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,525.56 : 117,996.36 = 55,349 : x
  2. Step 2: Convert to fraction form
    85,525.56/117,996.36 = 55,349/x
  3. Step 3: Cross multiply
    85,525.56x = 117,996.36 × 55,349
  4. Step 4: Simplify right side
    85,525.56x = 6,530,980,529.64
  5. Step 5: Solve for x
    x = 6,530,980,529.64/85,525.56
  6. Step 6: Final answer
    x = 76,362.91

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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.