Home / 89,809.86-123,938.44-49,525.09

Finding the Fourth Proportional to 89,809.86, 123,938.44 and 49,525.09

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Solution

The fourth proportional to 89,809.86, 123,938.44 and 49,525.09 is: 68,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,809.86 : 123,938.44 = 49,525.09 : x
  2. Step 2: Convert to fraction form
    89,809.86/123,938.44 = 49,525.09/x
  3. Step 3: Cross multiply
    89,809.86x = 123,938.44 × 49,525.09
  4. Step 4: Simplify right side
    89,809.86x = 6,138,061,961.80
  5. Step 5: Solve for x
    x = 6,138,061,961.80/89,809.86
  6. Step 6: Final answer
    x = 68,345.08

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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.