Home / 89,190.30-123,165.70-57,414.26

Finding the Fourth Proportional to 89,190.30, 123,165.70 and 57,414.26

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Solution

The fourth proportional to 89,190.30, 123,165.70 and 57,414.26 is: 79,285.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,190.30 : 123,165.70 = 57,414.26 : x
  2. Step 2: Convert to fraction form
    89,190.30/123,165.70 = 57,414.26/x
  3. Step 3: Cross multiply
    89,190.30x = 123,165.70 × 57,414.26
  4. Step 4: Simplify right side
    89,190.30x = 7,071,467,522.88
  5. Step 5: Solve for x
    x = 7,071,467,522.88/89,190.30
  6. Step 6: Final answer
    x = 79,285.16

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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.