Home / 89,406.54-123,383.09-49,122.82

Finding the Fourth Proportional to 89,406.54, 123,383.09 and 49,122.82

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Solution

The fourth proportional to 89,406.54, 123,383.09 and 49,122.82 is: 67,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,406.54 : 123,383.09 = 49,122.82 : x
  2. Step 2: Convert to fraction form
    89,406.54/123,383.09 = 49,122.82/x
  3. Step 3: Cross multiply
    89,406.54x = 123,383.09 × 49,122.82
  4. Step 4: Simplify right side
    89,406.54x = 6,060,925,321.11
  5. Step 5: Solve for x
    x = 6,060,925,321.11/89,406.54
  6. Step 6: Final answer
    x = 67,790.63

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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.