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Finding the Fourth Proportional to 84,273.71, 126,428.81 and 25,114.14

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Solution

The fourth proportional to 84,273.71, 126,428.81 and 25,114.14 is: 37,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,273.71 : 126,428.81 = 25,114.14 : x
  2. Step 2: Convert to fraction form
    84,273.71/126,428.81 = 25,114.14/x
  3. Step 3: Cross multiply
    84,273.71x = 126,428.81 × 25,114.14
  4. Step 4: Simplify right side
    84,273.71x = 3,175,150,708.80
  5. Step 5: Solve for x
    x = 3,175,150,708.80/84,273.71
  6. Step 6: Final answer
    x = 37,676.65

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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.