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Finding the Fourth Proportional to 84,797.20, 127,122.90 and 43,244.20

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Solution

The fourth proportional to 84,797.20, 127,122.90 and 43,244.20 is: 64,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,797.20 : 127,122.90 = 43,244.20 : x
  2. Step 2: Convert to fraction form
    84,797.20/127,122.90 = 43,244.20/x
  3. Step 3: Cross multiply
    84,797.20x = 127,122.90 × 43,244.20
  4. Step 4: Simplify right side
    84,797.20x = 5,497,328,112.18
  5. Step 5: Solve for x
    x = 5,497,328,112.18/84,797.20
  6. Step 6: Final answer
    x = 64,829.12

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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.