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Finding the Fourth Proportional to 84,894.63, 127,352.88 and 25,719.87

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Solution

The fourth proportional to 84,894.63, 127,352.88 and 25,719.87 is: 38,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,894.63 : 127,352.88 = 25,719.87 : x
  2. Step 2: Convert to fraction form
    84,894.63/127,352.88 = 25,719.87/x
  3. Step 3: Cross multiply
    84,894.63x = 127,352.88 × 25,719.87
  4. Step 4: Simplify right side
    84,894.63x = 3,275,499,517.73
  5. Step 5: Solve for x
    x = 3,275,499,517.73/84,894.63
  6. Step 6: Final answer
    x = 38,583.12

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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.