Home / 90,557.26-135,581.55-73,589.38

Finding the Fourth Proportional to 90,557.26, 135,581.55 and 73,589.38

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Solution

The fourth proportional to 90,557.26, 135,581.55 and 73,589.38 is: 110,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,557.26 : 135,581.55 = 73,589.38 : x
  2. Step 2: Convert to fraction form
    90,557.26/135,581.55 = 73,589.38/x
  3. Step 3: Cross multiply
    90,557.26x = 135,581.55 × 73,589.38
  4. Step 4: Simplify right side
    90,557.26x = 9,977,362,203.94
  5. Step 5: Solve for x
    x = 9,977,362,203.94/90,557.26
  6. Step 6: Final answer
    x = 110,177.39

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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.