Home / 89,986.12-134,975.82-27,655

Finding the Fourth Proportional to 89,986.12, 134,975.82 and 27,655

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Solution

The fourth proportional to 89,986.12, 134,975.82 and 27,655 is: 41,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,986.12 : 134,975.82 = 27,655 : x
  2. Step 2: Convert to fraction form
    89,986.12/134,975.82 = 27,655/x
  3. Step 3: Cross multiply
    89,986.12x = 134,975.82 × 27,655
  4. Step 4: Simplify right side
    89,986.12x = 3,732,756,302.10
  5. Step 5: Solve for x
    x = 3,732,756,302.10/89,986.12
  6. Step 6: Final answer
    x = 41,481.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.