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Finding the Fourth Proportional to 68,141.60, 94,051.92 and 45,481.76

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Solution

The fourth proportional to 68,141.60, 94,051.92 and 45,481.76 is: 62,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,141.60 : 94,051.92 = 45,481.76 : x
  2. Step 2: Convert to fraction form
    68,141.60/94,051.92 = 45,481.76/x
  3. Step 3: Cross multiply
    68,141.60x = 94,051.92 × 45,481.76
  4. Step 4: Simplify right side
    68,141.60x = 4,277,646,852.98
  5. Step 5: Solve for x
    x = 4,277,646,852.98/68,141.60
  6. Step 6: Final answer
    x = 62,775.85

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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.