Home / 89,767.58-123,920.08-63,942.75

Finding the Fourth Proportional to 89,767.58, 123,920.08 and 63,942.75

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Solution

The fourth proportional to 89,767.58, 123,920.08 and 63,942.75 is: 88,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,767.58 : 123,920.08 = 63,942.75 : x
  2. Step 2: Convert to fraction form
    89,767.58/123,920.08 = 63,942.75/x
  3. Step 3: Cross multiply
    89,767.58x = 123,920.08 × 63,942.75
  4. Step 4: Simplify right side
    89,767.58x = 7,923,790,535.56
  5. Step 5: Solve for x
    x = 7,923,790,535.56/89,767.58
  6. Step 6: Final answer
    x = 88,270.07

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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.