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Finding the Fourth Proportional to 63,858, 88,179.84 and 40,025.76

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Solution

The fourth proportional to 63,858, 88,179.84 and 40,025.76 is: 55,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,858 : 88,179.84 = 40,025.76 : x
  2. Step 2: Convert to fraction form
    63,858/88,179.84 = 40,025.76/x
  3. Step 3: Cross multiply
    63,858x = 88,179.84 × 40,025.76
  4. Step 4: Simplify right side
    63,858x = 3,529,465,112.68
  5. Step 5: Solve for x
    x = 3,529,465,112.68/63,858
  6. Step 6: Final answer
    x = 55,270.52

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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.