Home / 89,690.25-123,772.55-51,986.37

Finding the Fourth Proportional to 89,690.25, 123,772.55 and 51,986.37

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Solution

The fourth proportional to 89,690.25, 123,772.55 and 51,986.37 is: 71,741.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,690.25 : 123,772.55 = 51,986.37 : x
  2. Step 2: Convert to fraction form
    89,690.25/123,772.55 = 51,986.37/x
  3. Step 3: Cross multiply
    89,690.25x = 123,772.55 × 51,986.37
  4. Step 4: Simplify right side
    89,690.25x = 6,434,485,580.14
  5. Step 5: Solve for x
    x = 6,434,485,580.14/89,690.25
  6. Step 6: Final answer
    x = 71,741.19

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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.