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Finding the Fourth Proportional to 90,044.80, 135,085.29 and 26,865.88

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Solution

The fourth proportional to 90,044.80, 135,085.29 and 26,865.88 is: 40,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,044.80 : 135,085.29 = 26,865.88 : x
  2. Step 2: Convert to fraction form
    90,044.80/135,085.29 = 26,865.88/x
  3. Step 3: Cross multiply
    90,044.80x = 135,085.29 × 26,865.88
  4. Step 4: Simplify right side
    90,044.80x = 3,629,185,190.91
  5. Step 5: Solve for x
    x = 3,629,185,190.91/90,044.80
  6. Step 6: Final answer
    x = 40,304.22

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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.