Home / 55,202.72-76,166.80-31,324

Finding the Fourth Proportional to 55,202.72, 76,166.80 and 31,324

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Solution

The fourth proportional to 55,202.72, 76,166.80 and 31,324 is: 43,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,202.72 : 76,166.80 = 31,324 : x
  2. Step 2: Convert to fraction form
    55,202.72/76,166.80 = 31,324/x
  3. Step 3: Cross multiply
    55,202.72x = 76,166.80 × 31,324
  4. Step 4: Simplify right side
    55,202.72x = 2,385,848,843.20
  5. Step 5: Solve for x
    x = 2,385,848,843.20/55,202.72
  6. Step 6: Final answer
    x = 43,219.77

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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.