Home / 89,213.91-123,126.13-51,488.16

Finding the Fourth Proportional to 89,213.91, 123,126.13 and 51,488.16

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Solution

The fourth proportional to 89,213.91, 123,126.13 and 51,488.16 is: 71,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,213.91 : 123,126.13 = 51,488.16 : x
  2. Step 2: Convert to fraction form
    89,213.91/123,126.13 = 51,488.16/x
  3. Step 3: Cross multiply
    89,213.91x = 123,126.13 × 51,488.16
  4. Step 4: Simplify right side
    89,213.91x = 6,339,537,194.64
  5. Step 5: Solve for x
    x = 6,339,537,194.64/89,213.91
  6. Step 6: Final answer
    x = 71,059.97

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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.