Home / 55,076.20-76,004.97-31,207.42

Finding the Fourth Proportional to 55,076.20, 76,004.97 and 31,207.42

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Solution

The fourth proportional to 55,076.20, 76,004.97 and 31,207.42 is: 43,066.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,076.20 : 76,004.97 = 31,207.42 : x
  2. Step 2: Convert to fraction form
    55,076.20/76,004.97 = 31,207.42/x
  3. Step 3: Cross multiply
    55,076.20x = 76,004.97 × 31,207.42
  4. Step 4: Simplify right side
    55,076.20x = 2,371,918,998.86
  5. Step 5: Solve for x
    x = 2,371,918,998.86/55,076.20
  6. Step 6: Final answer
    x = 43,066.14

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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.