Home / 89,517.21-123,533.67-49,231.59

Finding the Fourth Proportional to 89,517.21, 123,533.67 and 49,231.59

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Solution

The fourth proportional to 89,517.21, 123,533.67 and 49,231.59 is: 67,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,517.21 : 123,533.67 = 49,231.59 : x
  2. Step 2: Convert to fraction form
    89,517.21/123,533.67 = 49,231.59/x
  3. Step 3: Cross multiply
    89,517.21x = 123,533.67 × 49,231.59
  4. Step 4: Simplify right side
    89,517.21x = 6,081,758,992.64
  5. Step 5: Solve for x
    x = 6,081,758,992.64/89,517.21
  6. Step 6: Final answer
    x = 67,939.55

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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.