Home / 56,181.89-77,529.24-30,687.84

Finding the Fourth Proportional to 56,181.89, 77,529.24 and 30,687.84

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Solution

The fourth proportional to 56,181.89, 77,529.24 and 30,687.84 is: 42,348.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,181.89 : 77,529.24 = 30,687.84 : x
  2. Step 2: Convert to fraction form
    56,181.89/77,529.24 = 30,687.84/x
  3. Step 3: Cross multiply
    56,181.89x = 77,529.24 × 30,687.84
  4. Step 4: Simplify right side
    56,181.89x = 2,379,204,912.44
  5. Step 5: Solve for x
    x = 2,379,204,912.44/56,181.89
  6. Step 6: Final answer
    x = 42,348.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.