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Finding the Fourth Proportional to 57,989.45, 79,970.33 and 37,839.89

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Solution

The fourth proportional to 57,989.45, 79,970.33 and 37,839.89 is: 52,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,989.45 : 79,970.33 = 37,839.89 : x
  2. Step 2: Convert to fraction form
    57,989.45/79,970.33 = 37,839.89/x
  3. Step 3: Cross multiply
    57,989.45x = 79,970.33 × 37,839.89
  4. Step 4: Simplify right side
    57,989.45x = 3,026,068,185.21
  5. Step 5: Solve for x
    x = 3,026,068,185.21/57,989.45
  6. Step 6: Final answer
    x = 52,183.09

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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.