Home / 89,817.06-123,955.84-51,581.64

Finding the Fourth Proportional to 89,817.06, 123,955.84 and 51,581.64

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Solution

The fourth proportional to 89,817.06, 123,955.84 and 51,581.64 is: 71,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,817.06 : 123,955.84 = 51,581.64 : x
  2. Step 2: Convert to fraction form
    89,817.06/123,955.84 = 51,581.64/x
  3. Step 3: Cross multiply
    89,817.06x = 123,955.84 × 51,581.64
  4. Step 4: Simplify right side
    89,817.06x = 6,393,845,514.78
  5. Step 5: Solve for x
    x = 6,393,845,514.78/89,817.06
  6. Step 6: Final answer
    x = 71,187.43

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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.