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Finding the Fourth Proportional to 51,241.73, 70,719.80 and 30,021.03

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Solution

The fourth proportional to 51,241.73, 70,719.80 and 30,021.03 is: 41,432.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,241.73 : 70,719.80 = 30,021.03 : x
  2. Step 2: Convert to fraction form
    51,241.73/70,719.80 = 30,021.03/x
  3. Step 3: Cross multiply
    51,241.73x = 70,719.80 × 30,021.03
  4. Step 4: Simplify right side
    51,241.73x = 2,123,081,087.29
  5. Step 5: Solve for x
    x = 2,123,081,087.29/51,241.73
  6. Step 6: Final answer
    x = 41,432.66

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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.