Home / 89,640.48-134,459.49-30,517.38

Finding the Fourth Proportional to 89,640.48, 134,459.49 and 30,517.38

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Solution

The fourth proportional to 89,640.48, 134,459.49 and 30,517.38 is: 45,775.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,640.48 : 134,459.49 = 30,517.38 : x
  2. Step 2: Convert to fraction form
    89,640.48/134,459.49 = 30,517.38/x
  3. Step 3: Cross multiply
    89,640.48x = 134,459.49 × 30,517.38
  4. Step 4: Simplify right side
    89,640.48x = 4,103,351,350.94
  5. Step 5: Solve for x
    x = 4,103,351,350.94/89,640.48
  6. Step 6: Final answer
    x = 45,775.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.