Home / 55,739.72-76,922.04-30,589.28

Finding the Fourth Proportional to 55,739.72, 76,922.04 and 30,589.28

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Solution

The fourth proportional to 55,739.72, 76,922.04 and 30,589.28 is: 42,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.72 : 76,922.04 = 30,589.28 : x
  2. Step 2: Convert to fraction form
    55,739.72/76,922.04 = 30,589.28/x
  3. Step 3: Cross multiply
    55,739.72x = 76,922.04 × 30,589.28
  4. Step 4: Simplify right side
    55,739.72x = 2,352,989,819.73
  5. Step 5: Solve for x
    x = 2,352,989,819.73/55,739.72
  6. Step 6: Final answer
    x = 42,213.88

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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.