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Finding the Fourth Proportional to 108,044.40, 162,046.08 and 45,758.64

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Solution

The fourth proportional to 108,044.40, 162,046.08 and 45,758.64 is: 68,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,044.40 : 162,046.08 = 45,758.64 : x
  2. Step 2: Convert to fraction form
    108,044.40/162,046.08 = 45,758.64/x
  3. Step 3: Cross multiply
    108,044.40x = 162,046.08 × 45,758.64
  4. Step 4: Simplify right side
    108,044.40x = 7,415,008,238.13
  5. Step 5: Solve for x
    x = 7,415,008,238.13/108,044.40
  6. Step 6: Final answer
    x = 68,629.27

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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.