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Finding the Fourth Proportional to 71,579.79, 107,288.69 and 36,445.23

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Solution

The fourth proportional to 71,579.79, 107,288.69 and 36,445.23 is: 54,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,579.79 : 107,288.69 = 36,445.23 : x
  2. Step 2: Convert to fraction form
    71,579.79/107,288.69 = 36,445.23/x
  3. Step 3: Cross multiply
    71,579.79x = 107,288.69 × 36,445.23
  4. Step 4: Simplify right side
    71,579.79x = 3,910,160,801.22
  5. Step 5: Solve for x
    x = 3,910,160,801.22/71,579.79
  6. Step 6: Final answer
    x = 54,626.60

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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.