Home / 90,321.72-124,650.54-54,520.44

Finding the Fourth Proportional to 90,321.72, 124,650.54 and 54,520.44

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Solution

The fourth proportional to 90,321.72, 124,650.54 and 54,520.44 is: 75,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,321.72 : 124,650.54 = 54,520.44 : x
  2. Step 2: Convert to fraction form
    90,321.72/124,650.54 = 54,520.44/x
  3. Step 3: Cross multiply
    90,321.72x = 124,650.54 × 54,520.44
  4. Step 4: Simplify right side
    90,321.72x = 6,796,002,287.04
  5. Step 5: Solve for x
    x = 6,796,002,287.04/90,321.72
  6. Step 6: Final answer
    x = 75,242.17

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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.