Home / 90,172.48-135,147.94-50,646.50

Finding the Fourth Proportional to 90,172.48, 135,147.94 and 50,646.50

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Solution

The fourth proportional to 90,172.48, 135,147.94 and 50,646.50 is: 75,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,172.48 : 135,147.94 = 50,646.50 : x
  2. Step 2: Convert to fraction form
    90,172.48/135,147.94 = 50,646.50/x
  3. Step 3: Cross multiply
    90,172.48x = 135,147.94 × 50,646.50
  4. Step 4: Simplify right side
    90,172.48x = 6,844,770,143.21
  5. Step 5: Solve for x
    x = 6,844,770,143.21/90,172.48
  6. Step 6: Final answer
    x = 75,907.53

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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.