Home / 55,207.36-76,188-30,057.76

Finding the Fourth Proportional to 55,207.36, 76,188 and 30,057.76

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Solution

The fourth proportional to 55,207.36, 76,188 and 30,057.76 is: 41,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.36 : 76,188 = 30,057.76 : x
  2. Step 2: Convert to fraction form
    55,207.36/76,188 = 30,057.76/x
  3. Step 3: Cross multiply
    55,207.36x = 76,188 × 30,057.76
  4. Step 4: Simplify right side
    55,207.36x = 2,290,040,618.88
  5. Step 5: Solve for x
    x = 2,290,040,618.88/55,207.36
  6. Step 6: Final answer
    x = 41,480.71

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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.