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Finding the Fourth Proportional to 89,810, 134,720.40 and 27,481.04

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Solution

The fourth proportional to 89,810, 134,720.40 and 27,481.04 is: 41,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,810 : 134,720.40 = 27,481.04 : x
  2. Step 2: Convert to fraction form
    89,810/134,720.40 = 27,481.04/x
  3. Step 3: Cross multiply
    89,810x = 134,720.40 × 27,481.04
  4. Step 4: Simplify right side
    89,810x = 3,702,256,701.22
  5. Step 5: Solve for x
    x = 3,702,256,701.22/89,810
  6. Step 6: Final answer
    x = 41,223.21

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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.