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Finding the Fourth Proportional to 85,100.20, 127,650.62 and 29,696.20

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Solution

The fourth proportional to 85,100.20, 127,650.62 and 29,696.20 is: 44,544.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100.20 : 127,650.62 = 29,696.20 : x
  2. Step 2: Convert to fraction form
    85,100.20/127,650.62 = 29,696.20/x
  3. Step 3: Cross multiply
    85,100.20x = 127,650.62 × 29,696.20
  4. Step 4: Simplify right side
    85,100.20x = 3,790,738,341.64
  5. Step 5: Solve for x
    x = 3,790,738,341.64/85,100.20
  6. Step 6: Final answer
    x = 44,544.41

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1.5x scale

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.