Home / 89,815.28-123,953.44-51,580.16

Finding the Fourth Proportional to 89,815.28, 123,953.44 and 51,580.16

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Solution

The fourth proportional to 89,815.28, 123,953.44 and 51,580.16 is: 71,185.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.28 : 123,953.44 = 51,580.16 : x
  2. Step 2: Convert to fraction form
    89,815.28/123,953.44 = 51,580.16/x
  3. Step 3: Cross multiply
    89,815.28x = 123,953.44 × 51,580.16
  4. Step 4: Simplify right side
    89,815.28x = 6,393,538,267.75
  5. Step 5: Solve for x
    x = 6,393,538,267.75/89,815.28
  6. Step 6: Final answer
    x = 71,185.42

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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.