Home / 89,777.49-123,887.37-49,491.60

Finding the Fourth Proportional to 89,777.49, 123,887.37 and 49,491.60

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Solution

The fourth proportional to 89,777.49, 123,887.37 and 49,491.60 is: 68,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,777.49 : 123,887.37 = 49,491.60 : x
  2. Step 2: Convert to fraction form
    89,777.49/123,887.37 = 49,491.60/x
  3. Step 3: Cross multiply
    89,777.49x = 123,887.37 × 49,491.60
  4. Step 4: Simplify right side
    89,777.49x = 6,131,384,161.09
  5. Step 5: Solve for x
    x = 6,131,384,161.09/89,777.49
  6. Step 6: Final answer
    x = 68,295.34

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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.