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Finding the Fourth Proportional to 89,777.84, 123,887.82 and 49,491.92

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Solution

The fourth proportional to 89,777.84, 123,887.82 and 49,491.92 is: 68,295.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,777.84 : 123,887.82 = 49,491.92 : x
  2. Step 2: Convert to fraction form
    89,777.84/123,887.82 = 49,491.92/x
  3. Step 3: Cross multiply
    89,777.84x = 123,887.82 × 49,491.92
  4. Step 4: Simplify right side
    89,777.84x = 6,131,446,076.41
  5. Step 5: Solve for x
    x = 6,131,446,076.41/89,777.84
  6. Step 6: Final answer
    x = 68,295.76

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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.