Home / 89,854.11-123,998.69-49,567.97

Finding the Fourth Proportional to 89,854.11, 123,998.69 and 49,567.97

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Solution

The fourth proportional to 89,854.11, 123,998.69 and 49,567.97 is: 68,403.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,854.11 : 123,998.69 = 49,567.97 : x
  2. Step 2: Convert to fraction form
    89,854.11/123,998.69 = 49,567.97/x
  3. Step 3: Cross multiply
    89,854.11x = 123,998.69 × 49,567.97
  4. Step 4: Simplify right side
    89,854.11x = 6,146,363,779.88
  5. Step 5: Solve for x
    x = 6,146,363,779.88/89,854.11
  6. Step 6: Final answer
    x = 68,403.81

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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.