Home / 84,743.62-127,116.15-21,563.80

Finding the Fourth Proportional to 84,743.62, 127,116.15 and 21,563.80

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Solution

The fourth proportional to 84,743.62, 127,116.15 and 21,563.80 is: 32,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,743.62 : 127,116.15 = 21,563.80 : x
  2. Step 2: Convert to fraction form
    84,743.62/127,116.15 = 21,563.80/x
  3. Step 3: Cross multiply
    84,743.62x = 127,116.15 × 21,563.80
  4. Step 4: Simplify right side
    84,743.62x = 2,741,107,235.37
  5. Step 5: Solve for x
    x = 2,741,107,235.37/84,743.62
  6. Step 6: Final answer
    x = 32,345.88

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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.