Home / 84,961.33-127,433.21-28,800

Finding the Fourth Proportional to 84,961.33, 127,433.21 and 28,800

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Solution

The fourth proportional to 84,961.33, 127,433.21 and 28,800 is: 43,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,961.33 : 127,433.21 = 28,800 : x
  2. Step 2: Convert to fraction form
    84,961.33/127,433.21 = 28,800/x
  3. Step 3: Cross multiply
    84,961.33x = 127,433.21 × 28,800
  4. Step 4: Simplify right side
    84,961.33x = 3,670,076,304
  5. Step 5: Solve for x
    x = 3,670,076,304/84,961.33
  6. Step 6: Final answer
    x = 43,197.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.