Home / 55,086.62-76,016.52-31,212.77

Finding the Fourth Proportional to 55,086.62, 76,016.52 and 31,212.77

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Solution

The fourth proportional to 55,086.62, 76,016.52 and 31,212.77 is: 43,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,086.62 : 76,016.52 = 31,212.77 : x
  2. Step 2: Convert to fraction form
    55,086.62/76,016.52 = 31,212.77/x
  3. Step 3: Cross multiply
    55,086.62x = 76,016.52 × 31,212.77
  4. Step 4: Simplify right side
    55,086.62x = 2,372,686,154.96
  5. Step 5: Solve for x
    x = 2,372,686,154.96/55,086.62
  6. Step 6: Final answer
    x = 43,071.91

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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.