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Finding the Fourth Proportional to 90,728.25, 125,204.99 and 50,984.25

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Solution

The fourth proportional to 90,728.25, 125,204.99 and 50,984.25 is: 70,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,728.25 : 125,204.99 = 50,984.25 : x
  2. Step 2: Convert to fraction form
    90,728.25/125,204.99 = 50,984.25/x
  3. Step 3: Cross multiply
    90,728.25x = 125,204.99 × 50,984.25
  4. Step 4: Simplify right side
    90,728.25x = 6,383,482,256.49
  5. Step 5: Solve for x
    x = 6,383,482,256.49/90,728.25
  6. Step 6: Final answer
    x = 70,358.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.