Home / 89,722.14-123,814.94-49,439.64

Finding the Fourth Proportional to 89,722.14, 123,814.94 and 49,439.64

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Solution

The fourth proportional to 89,722.14, 123,814.94 and 49,439.64 is: 68,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,722.14 : 123,814.94 = 49,439.64 : x
  2. Step 2: Convert to fraction form
    89,722.14/123,814.94 = 49,439.64/x
  3. Step 3: Cross multiply
    89,722.14x = 123,814.94 × 49,439.64
  4. Step 4: Simplify right side
    89,722.14x = 6,121,365,813.02
  5. Step 5: Solve for x
    x = 6,121,365,813.02/89,722.14
  6. Step 6: Final answer
    x = 68,225.81

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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.