Home / 89,841.91-123,979.66-49,554.80

Finding the Fourth Proportional to 89,841.91, 123,979.66 and 49,554.80

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Solution

The fourth proportional to 89,841.91, 123,979.66 and 49,554.80 is: 68,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,841.91 : 123,979.66 = 49,554.80 : x
  2. Step 2: Convert to fraction form
    89,841.91/123,979.66 = 49,554.80/x
  3. Step 3: Cross multiply
    89,841.91x = 123,979.66 × 49,554.80
  4. Step 4: Simplify right side
    89,841.91x = 6,143,787,255.37
  5. Step 5: Solve for x
    x = 6,143,787,255.37/89,841.91
  6. Step 6: Final answer
    x = 68,384.42

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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.