Home / 55,128.14-76,076.64-29,977.64

Finding the Fourth Proportional to 55,128.14, 76,076.64 and 29,977.64

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Solution

The fourth proportional to 55,128.14, 76,076.64 and 29,977.64 is: 41,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.14 : 76,076.64 = 29,977.64 : x
  2. Step 2: Convert to fraction form
    55,128.14/76,076.64 = 29,977.64/x
  3. Step 3: Cross multiply
    55,128.14x = 76,076.64 × 29,977.64
  4. Step 4: Simplify right side
    55,128.14x = 2,280,597,745.95
  5. Step 5: Solve for x
    x = 2,280,597,745.95/55,128.14
  6. Step 6: Final answer
    x = 41,369.03

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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.