Home / 84,819.30-127,204.65-25,640.70

Finding the Fourth Proportional to 84,819.30, 127,204.65 and 25,640.70

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Solution

The fourth proportional to 84,819.30, 127,204.65 and 25,640.70 is: 38,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,819.30 : 127,204.65 = 25,640.70 : x
  2. Step 2: Convert to fraction form
    84,819.30/127,204.65 = 25,640.70/x
  3. Step 3: Cross multiply
    84,819.30x = 127,204.65 × 25,640.70
  4. Step 4: Simplify right side
    84,819.30x = 3,261,616,269.26
  5. Step 5: Solve for x
    x = 3,261,616,269.26/84,819.30
  6. Step 6: Final answer
    x = 38,453.70

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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.