Home / 89,791.20-123,887.61-51,028.47

Finding the Fourth Proportional to 89,791.20, 123,887.61 and 51,028.47

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Solution

The fourth proportional to 89,791.20, 123,887.61 and 51,028.47 is: 70,405.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,791.20 : 123,887.61 = 51,028.47 : x
  2. Step 2: Convert to fraction form
    89,791.20/123,887.61 = 51,028.47/x
  3. Step 3: Cross multiply
    89,791.20x = 123,887.61 × 51,028.47
  4. Step 4: Simplify right side
    89,791.20x = 6,321,795,190.26
  5. Step 5: Solve for x
    x = 6,321,795,190.26/89,791.20
  6. Step 6: Final answer
    x = 70,405.51

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1.5x scale

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.