Home / 212,769.92-319,165.82-54,999.74

Finding the Fourth Proportional to 212,769.92, 319,165.82 and 54,999.74

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Solution

The fourth proportional to 212,769.92, 319,165.82 and 54,999.74 is: 82,502.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,769.92 : 319,165.82 = 54,999.74 : x
  2. Step 2: Convert to fraction form
    212,769.92/319,165.82 = 54,999.74/x
  3. Step 3: Cross multiply
    212,769.92x = 319,165.82 × 54,999.74
  4. Step 4: Simplify right side
    212,769.92x = 17,554,037,846.05
  5. Step 5: Solve for x
    x = 17,554,037,846.05/212,769.92
  6. Step 6: Final answer
    x = 82,502.44

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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.