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Finding the Fourth Proportional to 89,573.45, 133,944.90 and 69,353.75

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Solution

The fourth proportional to 89,573.45, 133,944.90 and 69,353.75 is: 103,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,573.45 : 133,944.90 = 69,353.75 : x
  2. Step 2: Convert to fraction form
    89,573.45/133,944.90 = 69,353.75/x
  3. Step 3: Cross multiply
    89,573.45x = 133,944.90 × 69,353.75
  4. Step 4: Simplify right side
    89,573.45x = 9,289,580,438.65
  5. Step 5: Solve for x
    x = 9,289,580,438.65/89,573.45
  6. Step 6: Final answer
    x = 103,709.09

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1.5x scale

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.