Home / 84,884.20-127,383.90-55,229.80

Finding the Fourth Proportional to 84,884.20, 127,383.90 and 55,229.80

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Solution

The fourth proportional to 84,884.20, 127,383.90 and 55,229.80 is: 82,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,884.20 : 127,383.90 = 55,229.80 : x
  2. Step 2: Convert to fraction form
    84,884.20/127,383.90 = 55,229.80/x
  3. Step 3: Cross multiply
    84,884.20x = 127,383.90 × 55,229.80
  4. Step 4: Simplify right side
    84,884.20x = 7,035,387,320.22
  5. Step 5: Solve for x
    x = 7,035,387,320.22/84,884.20
  6. Step 6: Final answer
    x = 82,882.18

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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.