Home / 89,129.43-123,054.54-57,353.55

Finding the Fourth Proportional to 89,129.43, 123,054.54 and 57,353.55

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Solution

The fourth proportional to 89,129.43, 123,054.54 and 57,353.55 is: 79,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,129.43 : 123,054.54 = 57,353.55 : x
  2. Step 2: Convert to fraction form
    89,129.43/123,054.54 = 57,353.55/x
  3. Step 3: Cross multiply
    89,129.43x = 123,054.54 × 57,353.55
  4. Step 4: Simplify right side
    89,129.43x = 7,057,614,712.62
  5. Step 5: Solve for x
    x = 7,057,614,712.62/89,129.43
  6. Step 6: Final answer
    x = 79,183.89

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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.