Home / 84,858.91-127,304.76-28,708.16

Finding the Fourth Proportional to 84,858.91, 127,304.76 and 28,708.16

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Solution

The fourth proportional to 84,858.91, 127,304.76 and 28,708.16 is: 43,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,858.91 : 127,304.76 = 28,708.16 : x
  2. Step 2: Convert to fraction form
    84,858.91/127,304.76 = 28,708.16/x
  3. Step 3: Cross multiply
    84,858.91x = 127,304.76 × 28,708.16
  4. Step 4: Simplify right side
    84,858.91x = 3,654,684,889.97
  5. Step 5: Solve for x
    x = 3,654,684,889.97/84,858.91
  6. Step 6: Final answer
    x = 43,067.78

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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.