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Finding the Fourth Proportional to 87,592.86, 120,879 and 49,869.54

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Solution

The fourth proportional to 87,592.86, 120,879 and 49,869.54 is: 68,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,592.86 : 120,879 = 49,869.54 : x
  2. Step 2: Convert to fraction form
    87,592.86/120,879 = 49,869.54/x
  3. Step 3: Cross multiply
    87,592.86x = 120,879 × 49,869.54
  4. Step 4: Simplify right side
    87,592.86x = 6,028,180,125.66
  5. Step 5: Solve for x
    x = 6,028,180,125.66/87,592.86
  6. Step 6: Final answer
    x = 68,820.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.