Home / 89,827.15-123,930.16-57,579.55

Finding the Fourth Proportional to 89,827.15, 123,930.16 and 57,579.55

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Solution

The fourth proportional to 89,827.15, 123,930.16 and 57,579.55 is: 79,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,827.15 : 123,930.16 = 57,579.55 : x
  2. Step 2: Convert to fraction form
    89,827.15/123,930.16 = 57,579.55/x
  3. Step 3: Cross multiply
    89,827.15x = 123,930.16 × 57,579.55
  4. Step 4: Simplify right side
    89,827.15x = 7,135,842,390.45
  5. Step 5: Solve for x
    x = 7,135,842,390.45/89,827.15
  6. Step 6: Final answer
    x = 79,439.71

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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.