Home / 89,578.40-123,554.66-76,056.38

Finding the Fourth Proportional to 89,578.40, 123,554.66 and 76,056.38

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Solution

The fourth proportional to 89,578.40, 123,554.66 and 76,056.38 is: 104,903.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,578.40 : 123,554.66 = 76,056.38 : x
  2. Step 2: Convert to fraction form
    89,578.40/123,554.66 = 76,056.38/x
  3. Step 3: Cross multiply
    89,578.40x = 123,554.66 × 76,056.38
  4. Step 4: Simplify right side
    89,578.40x = 9,397,120,171.73
  5. Step 5: Solve for x
    x = 9,397,120,171.73/89,578.40
  6. Step 6: Final answer
    x = 104,903.86

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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.