Home / 89,789.04-123,914.28-49,511.76

Finding the Fourth Proportional to 89,789.04, 123,914.28 and 49,511.76

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Solution

The fourth proportional to 89,789.04, 123,914.28 and 49,511.76 is: 68,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,789.04 : 123,914.28 = 49,511.76 : x
  2. Step 2: Convert to fraction form
    89,789.04/123,914.28 = 49,511.76/x
  3. Step 3: Cross multiply
    89,789.04x = 123,914.28 × 49,511.76
  4. Step 4: Simplify right side
    89,789.04x = 6,135,214,091.93
  5. Step 5: Solve for x
    x = 6,135,214,091.93/89,789.04
  6. Step 6: Final answer
    x = 68,329.21

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1.5x scale

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.