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Finding the Fourth Proportional to 85,433.63, 128,177.86 and 41,063.60

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Solution

The fourth proportional to 85,433.63, 128,177.86 and 41,063.60 is: 61,608.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,433.63 : 128,177.86 = 41,063.60 : x
  2. Step 2: Convert to fraction form
    85,433.63/128,177.86 = 41,063.60/x
  3. Step 3: Cross multiply
    85,433.63x = 128,177.86 × 41,063.60
  4. Step 4: Simplify right side
    85,433.63x = 5,263,444,371.90
  5. Step 5: Solve for x
    x = 5,263,444,371.90/85,433.63
  6. Step 6: Final answer
    x = 61,608.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.