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Finding the Fourth Proportional to 84,551.71, 126,828.63 and 25,383.94

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Solution

The fourth proportional to 84,551.71, 126,828.63 and 25,383.94 is: 38,076.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,551.71 : 126,828.63 = 25,383.94 : x
  2. Step 2: Convert to fraction form
    84,551.71/126,828.63 = 25,383.94/x
  3. Step 3: Cross multiply
    84,551.71x = 126,828.63 × 25,383.94
  4. Step 4: Simplify right side
    84,551.71x = 3,219,410,207.28
  5. Step 5: Solve for x
    x = 3,219,410,207.28/84,551.71
  6. Step 6: Final answer
    x = 38,076.23

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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.