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Finding the Fourth Proportional to 84,302.57, 126,453.86 and 25,179.76

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Solution

The fourth proportional to 84,302.57, 126,453.86 and 25,179.76 is: 37,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,302.57 : 126,453.86 = 25,179.76 : x
  2. Step 2: Convert to fraction form
    84,302.57/126,453.86 = 25,179.76/x
  3. Step 3: Cross multiply
    84,302.57x = 126,453.86 × 25,179.76
  4. Step 4: Simplify right side
    84,302.57x = 3,184,077,972.47
  5. Step 5: Solve for x
    x = 3,184,077,972.47/84,302.57
  6. Step 6: Final answer
    x = 37,769.64

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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.