Home / 89,783.67-123,902.31-49,498.86

Finding the Fourth Proportional to 89,783.67, 123,902.31 and 49,498.86

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Solution

The fourth proportional to 89,783.67, 123,902.31 and 49,498.86 is: 68,308.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,783.67 : 123,902.31 = 49,498.86 : x
  2. Step 2: Convert to fraction form
    89,783.67/123,902.31 = 49,498.86/x
  3. Step 3: Cross multiply
    89,783.67x = 123,902.31 × 49,498.86
  4. Step 4: Simplify right side
    89,783.67x = 6,133,023,096.37
  5. Step 5: Solve for x
    x = 6,133,023,096.37/89,783.67
  6. Step 6: Final answer
    x = 68,308.89

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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.