Home / 89,668.92-123,731.64-53,865.30

Finding the Fourth Proportional to 89,668.92, 123,731.64 and 53,865.30

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Solution

The fourth proportional to 89,668.92, 123,731.64 and 53,865.30 is: 74,327.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,668.92 : 123,731.64 = 53,865.30 : x
  2. Step 2: Convert to fraction form
    89,668.92/123,731.64 = 53,865.30/x
  3. Step 3: Cross multiply
    89,668.92x = 123,731.64 × 53,865.30
  4. Step 4: Simplify right side
    89,668.92x = 6,664,841,908.09
  5. Step 5: Solve for x
    x = 6,664,841,908.09/89,668.92
  6. Step 6: Final answer
    x = 74,327.22

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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.