Home / 89,768.24-123,840.60-55,767.68

Finding the Fourth Proportional to 89,768.24, 123,840.60 and 55,767.68

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Solution

The fourth proportional to 89,768.24, 123,840.60 and 55,767.68 is: 76,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,768.24 : 123,840.60 = 55,767.68 : x
  2. Step 2: Convert to fraction form
    89,768.24/123,840.60 = 55,767.68/x
  3. Step 3: Cross multiply
    89,768.24x = 123,840.60 × 55,767.68
  4. Step 4: Simplify right side
    89,768.24x = 6,906,302,951.81
  5. Step 5: Solve for x
    x = 6,906,302,951.81/89,768.24
  6. Step 6: Final answer
    x = 76,934.82

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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.