Home / 89,689.14-123,771.84-49,403.04

Finding the Fourth Proportional to 89,689.14, 123,771.84 and 49,403.04

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Solution

The fourth proportional to 89,689.14, 123,771.84 and 49,403.04 is: 68,176.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,689.14 : 123,771.84 = 49,403.04 : x
  2. Step 2: Convert to fraction form
    89,689.14/123,771.84 = 49,403.04/x
  3. Step 3: Cross multiply
    89,689.14x = 123,771.84 × 49,403.04
  4. Step 4: Simplify right side
    89,689.14x = 6,114,705,162.39
  5. Step 5: Solve for x
    x = 6,114,705,162.39/89,689.14
  6. Step 6: Final answer
    x = 68,176.65

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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.