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Finding the Fourth Proportional to 92,520, 127,677.60 and 50,078.88

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Solution

The fourth proportional to 92,520, 127,677.60 and 50,078.88 is: 69,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,520 : 127,677.60 = 50,078.88 : x
  2. Step 2: Convert to fraction form
    92,520/127,677.60 = 50,078.88/x
  3. Step 3: Cross multiply
    92,520x = 127,677.60 × 50,078.88
  4. Step 4: Simplify right side
    92,520x = 6,393,951,209.09
  5. Step 5: Solve for x
    x = 6,393,951,209.09/92,520
  6. Step 6: Final answer
    x = 69,108.85

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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.