Home / 55,305.76-76,321.82-30,155.26

Finding the Fourth Proportional to 55,305.76, 76,321.82 and 30,155.26

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Solution

The fourth proportional to 55,305.76, 76,321.82 and 30,155.26 is: 41,614.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,305.76 : 76,321.82 = 30,155.26 : x
  2. Step 2: Convert to fraction form
    55,305.76/76,321.82 = 30,155.26/x
  3. Step 3: Cross multiply
    55,305.76x = 76,321.82 × 30,155.26
  4. Step 4: Simplify right side
    55,305.76x = 2,301,504,325.77
  5. Step 5: Solve for x
    x = 2,301,504,325.77/55,305.76
  6. Step 6: Final answer
    x = 41,614.19

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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.