Home / 87,817.86-121,178.46-49,575.42

Finding the Fourth Proportional to 87,817.86, 121,178.46 and 49,575.42

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Solution

The fourth proportional to 87,817.86, 121,178.46 and 49,575.42 is: 68,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817.86 : 121,178.46 = 49,575.42 : x
  2. Step 2: Convert to fraction form
    87,817.86/121,178.46 = 49,575.42/x
  3. Step 3: Cross multiply
    87,817.86x = 121,178.46 × 49,575.42
  4. Step 4: Simplify right side
    87,817.86x = 6,007,473,049.45
  5. Step 5: Solve for x
    x = 6,007,473,049.45/87,817.86
  6. Step 6: Final answer
    x = 68,408.33

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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.