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Finding the Fourth Proportional to 85,167.90, 127,769.67 and 29,003.58

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Solution

The fourth proportional to 85,167.90, 127,769.67 and 29,003.58 is: 43,511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,167.90 : 127,769.67 = 29,003.58 : x
  2. Step 2: Convert to fraction form
    85,167.90/127,769.67 = 29,003.58/x
  3. Step 3: Cross multiply
    85,167.90x = 127,769.67 × 29,003.58
  4. Step 4: Simplify right side
    85,167.90x = 3,705,777,845.42
  5. Step 5: Solve for x
    x = 3,705,777,845.42/85,167.90
  6. Step 6: Final answer
    x = 43,511.44

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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.