Home / 89,697.20-123,772.83-55,236.45

Finding the Fourth Proportional to 89,697.20, 123,772.83 and 55,236.45

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Solution

The fourth proportional to 89,697.20, 123,772.83 and 55,236.45 is: 76,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,697.20 : 123,772.83 = 55,236.45 : x
  2. Step 2: Convert to fraction form
    89,697.20/123,772.83 = 55,236.45/x
  3. Step 3: Cross multiply
    89,697.20x = 123,772.83 × 55,236.45
  4. Step 4: Simplify right side
    89,697.20x = 6,836,771,735.65
  5. Step 5: Solve for x
    x = 6,836,771,735.65/89,697.20
  6. Step 6: Final answer
    x = 76,220.57

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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.