Home / 55,371.88-76,412.11-30,221.56

Finding the Fourth Proportional to 55,371.88, 76,412.11 and 30,221.56

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Solution

The fourth proportional to 55,371.88, 76,412.11 and 30,221.56 is: 41,705.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,371.88 : 76,412.11 = 30,221.56 : x
  2. Step 2: Convert to fraction form
    55,371.88/76,412.11 = 30,221.56/x
  3. Step 3: Cross multiply
    55,371.88x = 76,412.11 × 30,221.56
  4. Step 4: Simplify right side
    55,371.88x = 2,309,293,167.09
  5. Step 5: Solve for x
    x = 2,309,293,167.09/55,371.88
  6. Step 6: Final answer
    x = 41,705.16

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1.5x scale

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.