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Finding the Fourth Proportional to 88,770.78, 122,498.70 and 50,539.64

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Solution

The fourth proportional to 88,770.78, 122,498.70 and 50,539.64 is: 69,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,770.78 : 122,498.70 = 50,539.64 : x
  2. Step 2: Convert to fraction form
    88,770.78/122,498.70 = 50,539.64/x
  3. Step 3: Cross multiply
    88,770.78x = 122,498.70 × 50,539.64
  4. Step 4: Simplify right side
    88,770.78x = 6,191,040,198.47
  5. Step 5: Solve for x
    x = 6,191,040,198.47/88,770.78
  6. Step 6: Final answer
    x = 69,741.87

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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.