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Finding the Fourth Proportional to 84,805, 127,265.82 and 29,401

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Solution

The fourth proportional to 84,805, 127,265.82 and 29,401 is: 44,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,805 : 127,265.82 = 29,401 : x
  2. Step 2: Convert to fraction form
    84,805/127,265.82 = 29,401/x
  3. Step 3: Cross multiply
    84,805x = 127,265.82 × 29,401
  4. Step 4: Simplify right side
    84,805x = 3,741,742,373.82
  5. Step 5: Solve for x
    x = 3,741,742,373.82/84,805
  6. Step 6: Final answer
    x = 44,121.72

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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.