Home / 90,147.48-135,110.44-50,621.50

Finding the Fourth Proportional to 90,147.48, 135,110.44 and 50,621.50

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Solution

The fourth proportional to 90,147.48, 135,110.44 and 50,621.50 is: 75,870.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,147.48 : 135,110.44 = 50,621.50 : x
  2. Step 2: Convert to fraction form
    90,147.48/135,110.44 = 50,621.50/x
  3. Step 3: Cross multiply
    90,147.48x = 135,110.44 × 50,621.50
  4. Step 4: Simplify right side
    90,147.48x = 6,839,493,138.46
  5. Step 5: Solve for x
    x = 6,839,493,138.46/90,147.48
  6. Step 6: Final answer
    x = 75,870.04

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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.