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Finding the Fourth Proportional to 108,529.60, 162,794.40 and 45,338.80

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Solution

The fourth proportional to 108,529.60, 162,794.40 and 45,338.80 is: 68,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,529.60 : 162,794.40 = 45,338.80 : x
  2. Step 2: Convert to fraction form
    108,529.60/162,794.40 = 45,338.80/x
  3. Step 3: Cross multiply
    108,529.60x = 162,794.40 × 45,338.80
  4. Step 4: Simplify right side
    108,529.60x = 7,380,902,742.72
  5. Step 5: Solve for x
    x = 7,380,902,742.72/108,529.60
  6. Step 6: Final answer
    x = 68,008.20

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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.