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Finding the Fourth Proportional to 79,609.48, 109,862.40 and 43,801

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Solution

The fourth proportional to 79,609.48, 109,862.40 and 43,801 is: 60,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,609.48 : 109,862.40 = 43,801 : x
  2. Step 2: Convert to fraction form
    79,609.48/109,862.40 = 43,801/x
  3. Step 3: Cross multiply
    79,609.48x = 109,862.40 × 43,801
  4. Step 4: Simplify right side
    79,609.48x = 4,812,082,982.40
  5. Step 5: Solve for x
    x = 4,812,082,982.40/79,609.48
  6. Step 6: Final answer
    x = 60,446.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.