Home / 89,813.28-123,950.68-51,578.14

Finding the Fourth Proportional to 89,813.28, 123,950.68 and 51,578.14

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Solution

The fourth proportional to 89,813.28, 123,950.68 and 51,578.14 is: 71,182.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,813.28 : 123,950.68 = 51,578.14 : x
  2. Step 2: Convert to fraction form
    89,813.28/123,950.68 = 51,578.14/x
  3. Step 3: Cross multiply
    89,813.28x = 123,950.68 × 51,578.14
  4. Step 4: Simplify right side
    89,813.28x = 6,393,145,526.14
  5. Step 5: Solve for x
    x = 6,393,145,526.14/89,813.28
  6. Step 6: Final answer
    x = 71,182.63

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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.