Home / 89,640.82-134,471.09-29,647.45

Finding the Fourth Proportional to 89,640.82, 134,471.09 and 29,647.45

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Solution

The fourth proportional to 89,640.82, 134,471.09 and 29,647.45 is: 44,474.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,640.82 : 134,471.09 = 29,647.45 : x
  2. Step 2: Convert to fraction form
    89,640.82/134,471.09 = 29,647.45/x
  3. Step 3: Cross multiply
    89,640.82x = 134,471.09 × 29,647.45
  4. Step 4: Simplify right side
    89,640.82x = 3,986,724,236.26
  5. Step 5: Solve for x
    x = 3,986,724,236.26/89,640.82
  6. Step 6: Final answer
    x = 44,474.43

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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.