Home / 89,102.12-122,960.54-48,815.82

Finding the Fourth Proportional to 89,102.12, 122,960.54 and 48,815.82

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Solution

The fourth proportional to 89,102.12, 122,960.54 and 48,815.82 is: 67,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,102.12 : 122,960.54 = 48,815.82 : x
  2. Step 2: Convert to fraction form
    89,102.12/122,960.54 = 48,815.82/x
  3. Step 3: Cross multiply
    89,102.12x = 122,960.54 × 48,815.82
  4. Step 4: Simplify right side
    89,102.12x = 6,002,419,587.74
  5. Step 5: Solve for x
    x = 6,002,419,587.74/89,102.12
  6. Step 6: Final answer
    x = 67,365.62

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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.