Home / 89,664.80-134,322.24-54,517.28

Finding the Fourth Proportional to 89,664.80, 134,322.24 and 54,517.28

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Solution

The fourth proportional to 89,664.80, 134,322.24 and 54,517.28 is: 81,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,664.80 : 134,322.24 = 54,517.28 : x
  2. Step 2: Convert to fraction form
    89,664.80/134,322.24 = 54,517.28/x
  3. Step 3: Cross multiply
    89,664.80x = 134,322.24 × 54,517.28
  4. Step 4: Simplify right side
    89,664.80x = 7,322,883,168.31
  5. Step 5: Solve for x
    x = 7,322,883,168.31/89,664.80
  6. Step 6: Final answer
    x = 81,669.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.