Home / 89,816.28-123,954.82-51,581.16

Finding the Fourth Proportional to 89,816.28, 123,954.82 and 51,581.16

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Solution

The fourth proportional to 89,816.28, 123,954.82 and 51,581.16 is: 71,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,816.28 : 123,954.82 = 51,581.16 : x
  2. Step 2: Convert to fraction form
    89,816.28/123,954.82 = 51,581.16/x
  3. Step 3: Cross multiply
    89,816.28x = 123,954.82 × 51,581.16
  4. Step 4: Simplify right side
    89,816.28x = 6,393,733,403.19
  5. Step 5: Solve for x
    x = 6,393,733,403.19/89,816.28
  6. Step 6: Final answer
    x = 71,186.80

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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.