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Finding the Fourth Proportional to 87,014.96, 120,099.96 and 49,310

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Solution

The fourth proportional to 87,014.96, 120,099.96 and 49,310 is: 68,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,014.96 : 120,099.96 = 49,310 : x
  2. Step 2: Convert to fraction form
    87,014.96/120,099.96 = 49,310/x
  3. Step 3: Cross multiply
    87,014.96x = 120,099.96 × 49,310
  4. Step 4: Simplify right side
    87,014.96x = 5,922,129,027.60
  5. Step 5: Solve for x
    x = 5,922,129,027.60/87,014.96
  6. Step 6: Final answer
    x = 68,058.75

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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.