Home / 90,821.72-136,261.77-27,654.07

Finding the Fourth Proportional to 90,821.72, 136,261.77 and 27,654.07

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Solution

The fourth proportional to 90,821.72, 136,261.77 and 27,654.07 is: 41,489.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,821.72 : 136,261.77 = 27,654.07 : x
  2. Step 2: Convert to fraction form
    90,821.72/136,261.77 = 27,654.07/x
  3. Step 3: Cross multiply
    90,821.72x = 136,261.77 × 27,654.07
  4. Step 4: Simplify right side
    90,821.72x = 3,768,192,525.90
  5. Step 5: Solve for x
    x = 3,768,192,525.90/90,821.72
  6. Step 6: Final answer
    x = 41,489.99

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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.