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Finding the Fourth Proportional to 84,775.76, 127,185.78 and 49,202.88

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Solution

The fourth proportional to 84,775.76, 127,185.78 and 49,202.88 is: 73,817.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,775.76 : 127,185.78 = 49,202.88 : x
  2. Step 2: Convert to fraction form
    84,775.76/127,185.78 = 49,202.88/x
  3. Step 3: Cross multiply
    84,775.76x = 127,185.78 × 49,202.88
  4. Step 4: Simplify right side
    84,775.76x = 6,257,906,671.05
  5. Step 5: Solve for x
    x = 6,257,906,671.05/84,775.76
  6. Step 6: Final answer
    x = 73,817.17

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1.5x scale

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.