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Finding the Fourth Proportional to 84,933.89, 127,400.36 and 21,753.89

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Solution

The fourth proportional to 84,933.89, 127,400.36 and 21,753.89 is: 32,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,933.89 : 127,400.36 = 21,753.89 : x
  2. Step 2: Convert to fraction form
    84,933.89/127,400.36 = 21,753.89/x
  3. Step 3: Cross multiply
    84,933.89x = 127,400.36 × 21,753.89
  4. Step 4: Simplify right side
    84,933.89x = 2,771,453,417.40
  5. Step 5: Solve for x
    x = 2,771,453,417.40/84,933.89
  6. Step 6: Final answer
    x = 32,630.71

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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.