Home / 55,078.56-76,008.36-29,928

Finding the Fourth Proportional to 55,078.56, 76,008.36 and 29,928

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Solution

The fourth proportional to 55,078.56, 76,008.36 and 29,928 is: 41,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,078.56 : 76,008.36 = 29,928 : x
  2. Step 2: Convert to fraction form
    55,078.56/76,008.36 = 29,928/x
  3. Step 3: Cross multiply
    55,078.56x = 76,008.36 × 29,928
  4. Step 4: Simplify right side
    55,078.56x = 2,274,778,198.08
  5. Step 5: Solve for x
    x = 2,274,778,198.08/55,078.56
  6. Step 6: Final answer
    x = 41,300.61

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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.