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Finding the Fourth Proportional to 85,417.44, 128,037 and 29,241

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Solution

The fourth proportional to 85,417.44, 128,037 and 29,241 is: 43,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,417.44 : 128,037 = 29,241 : x
  2. Step 2: Convert to fraction form
    85,417.44/128,037 = 29,241/x
  3. Step 3: Cross multiply
    85,417.44x = 128,037 × 29,241
  4. Step 4: Simplify right side
    85,417.44x = 3,743,929,917
  5. Step 5: Solve for x
    x = 3,743,929,917/85,417.44
  6. Step 6: Final answer
    x = 43,830.98

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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.