Home / 55,134.60-76,083.42-31,262.88

Finding the Fourth Proportional to 55,134.60, 76,083.42 and 31,262.88

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Solution

The fourth proportional to 55,134.60, 76,083.42 and 31,262.88 is: 43,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,134.60 : 76,083.42 = 31,262.88 : x
  2. Step 2: Convert to fraction form
    55,134.60/76,083.42 = 31,262.88/x
  3. Step 3: Cross multiply
    55,134.60x = 76,083.42 × 31,262.88
  4. Step 4: Simplify right side
    55,134.60x = 2,378,586,829.45
  5. Step 5: Solve for x
    x = 2,378,586,829.45/55,134.60
  6. Step 6: Final answer
    x = 43,141.45

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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.