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Finding the Fourth Proportional to 84,786.88, 127,164.48 and 32,178.88

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Solution

The fourth proportional to 84,786.88, 127,164.48 and 32,178.88 is: 48,262.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,786.88 : 127,164.48 = 32,178.88 : x
  2. Step 2: Convert to fraction form
    84,786.88/127,164.48 = 32,178.88/x
  3. Step 3: Cross multiply
    84,786.88x = 127,164.48 × 32,178.88
  4. Step 4: Simplify right side
    84,786.88x = 4,092,010,542.18
  5. Step 5: Solve for x
    x = 4,092,010,542.18/84,786.88
  6. Step 6: Final answer
    x = 48,262.31

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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.