Home / 55,128.39-76,076.98-29,977.89

Finding the Fourth Proportional to 55,128.39, 76,076.98 and 29,977.89

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Solution

The fourth proportional to 55,128.39, 76,076.98 and 29,977.89 is: 41,369.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.39 : 76,076.98 = 29,977.89 : x
  2. Step 2: Convert to fraction form
    55,128.39/76,076.98 = 29,977.89/x
  3. Step 3: Cross multiply
    55,128.39x = 76,076.98 × 29,977.89
  4. Step 4: Simplify right side
    55,128.39x = 2,280,627,337.97
  5. Step 5: Solve for x
    x = 2,280,627,337.97/55,128.39
  6. Step 6: Final answer
    x = 41,369.38

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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.