Home / 272,939.12-409,451.88-80,833.04

Finding the Fourth Proportional to 272,939.12, 409,451.88 and 80,833.04

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Solution

The fourth proportional to 272,939.12, 409,451.88 and 80,833.04 is: 121,262.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,939.12 : 409,451.88 = 80,833.04 : x
  2. Step 2: Convert to fraction form
    272,939.12/409,451.88 = 80,833.04/x
  3. Step 3: Cross multiply
    272,939.12x = 409,451.88 × 80,833.04
  4. Step 4: Simplify right side
    272,939.12x = 33,097,240,194.12
  5. Step 5: Solve for x
    x = 33,097,240,194.12/272,939.12
  6. Step 6: Final answer
    x = 121,262.35

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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.