Home / 89,351.30-123,127.08-63,785.54

Finding the Fourth Proportional to 89,351.30, 123,127.08 and 63,785.54

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Solution

The fourth proportional to 89,351.30, 123,127.08 and 63,785.54 is: 87,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,351.30 : 123,127.08 = 63,785.54 : x
  2. Step 2: Convert to fraction form
    89,351.30/123,127.08 = 63,785.54/x
  3. Step 3: Cross multiply
    89,351.30x = 123,127.08 × 63,785.54
  4. Step 4: Simplify right side
    89,351.30x = 7,853,727,286.42
  5. Step 5: Solve for x
    x = 7,853,727,286.42/89,351.30
  6. Step 6: Final answer
    x = 87,897.18

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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.