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Finding the Fourth Proportional to 81,188.86, 112,041.30 and 44,889.73

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Solution

The fourth proportional to 81,188.86, 112,041.30 and 44,889.73 is: 61,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,188.86 : 112,041.30 = 44,889.73 : x
  2. Step 2: Convert to fraction form
    81,188.86/112,041.30 = 44,889.73/x
  3. Step 3: Cross multiply
    81,188.86x = 112,041.30 × 44,889.73
  4. Step 4: Simplify right side
    81,188.86x = 5,029,503,705.85
  5. Step 5: Solve for x
    x = 5,029,503,705.85/81,188.86
  6. Step 6: Final answer
    x = 61,948.20

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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.