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Finding the Fourth Proportional to 51,296.79, 70,819.01 and 39,101.53

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Solution

The fourth proportional to 51,296.79, 70,819.01 and 39,101.53 is: 53,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,296.79 : 70,819.01 = 39,101.53 : x
  2. Step 2: Convert to fraction form
    51,296.79/70,819.01 = 39,101.53/x
  3. Step 3: Cross multiply
    51,296.79x = 70,819.01 × 39,101.53
  4. Step 4: Simplify right side
    51,296.79x = 2,769,131,644.09
  5. Step 5: Solve for x
    x = 2,769,131,644.09/51,296.79
  6. Step 6: Final answer
    x = 53,982.55

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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.