Home / 55,072.22-76,004.28-30,872.79

Finding the Fourth Proportional to 55,072.22, 76,004.28 and 30,872.79

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Solution

The fourth proportional to 55,072.22, 76,004.28 and 30,872.79 is: 42,607.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,072.22 : 76,004.28 = 30,872.79 : x
  2. Step 2: Convert to fraction form
    55,072.22/76,004.28 = 30,872.79/x
  3. Step 3: Cross multiply
    55,072.22x = 76,004.28 × 30,872.79
  4. Step 4: Simplify right side
    55,072.22x = 2,346,464,175.54
  5. Step 5: Solve for x
    x = 2,346,464,175.54/55,072.22
  6. Step 6: Final answer
    x = 42,607.04

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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.