Home / 55,112.79-76,056.53-31,238.97

Finding the Fourth Proportional to 55,112.79, 76,056.53 and 31,238.97

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Solution

The fourth proportional to 55,112.79, 76,056.53 and 31,238.97 is: 43,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112.79 : 76,056.53 = 31,238.97 : x
  2. Step 2: Convert to fraction form
    55,112.79/76,056.53 = 31,238.97/x
  3. Step 3: Cross multiply
    55,112.79x = 76,056.53 × 31,238.97
  4. Step 4: Simplify right side
    55,112.79x = 2,375,927,658.97
  5. Step 5: Solve for x
    x = 2,375,927,658.97/55,112.79
  6. Step 6: Final answer
    x = 43,110.28

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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.