Home / 89,329.50-123,378.39-59,469.66

Finding the Fourth Proportional to 89,329.50, 123,378.39 and 59,469.66

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Solution

The fourth proportional to 89,329.50, 123,378.39 and 59,469.66 is: 82,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,329.50 : 123,378.39 = 59,469.66 : x
  2. Step 2: Convert to fraction form
    89,329.50/123,378.39 = 59,469.66/x
  3. Step 3: Cross multiply
    89,329.50x = 123,378.39 × 59,469.66
  4. Step 4: Simplify right side
    89,329.50x = 7,337,270,904.65
  5. Step 5: Solve for x
    x = 7,337,270,904.65/89,329.50
  6. Step 6: Final answer
    x = 82,137.15

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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.