Home / 89,715.18-123,797.67-55,254.42

Finding the Fourth Proportional to 89,715.18, 123,797.67 and 55,254.42

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Solution

The fourth proportional to 89,715.18, 123,797.67 and 55,254.42 is: 76,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,715.18 : 123,797.67 = 55,254.42 : x
  2. Step 2: Convert to fraction form
    89,715.18/123,797.67 = 55,254.42/x
  3. Step 3: Cross multiply
    89,715.18x = 123,797.67 × 55,254.42
  4. Step 4: Simplify right side
    89,715.18x = 6,840,368,453.20
  5. Step 5: Solve for x
    x = 6,840,368,453.20/89,715.18
  6. Step 6: Final answer
    x = 76,245.39

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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.