Home / 89,755.33-123,860.73-48,919.81

Finding the Fourth Proportional to 89,755.33, 123,860.73 and 48,919.81

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Solution

The fourth proportional to 89,755.33, 123,860.73 and 48,919.81 is: 67,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,755.33 : 123,860.73 = 48,919.81 : x
  2. Step 2: Convert to fraction form
    89,755.33/123,860.73 = 48,919.81/x
  3. Step 3: Cross multiply
    89,755.33x = 123,860.73 × 48,919.81
  4. Step 4: Simplify right side
    89,755.33x = 6,059,243,378.06
  5. Step 5: Solve for x
    x = 6,059,243,378.06/89,755.33
  6. Step 6: Final answer
    x = 67,508.45

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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.